Q. According to Bernoulli's principle, an increase in the speed of a fluid occurs simultaneously with a decrease in which of the following? (2019)
A.
Pressure
B.
Density
C.
Viscosity
D.
Temperature
Show solution
Solution
Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure.
Correct Answer:
A
— Pressure
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Q. According to Bernoulli's principle, what happens to the pressure of a fluid when its velocity increases?
A.
Pressure increases
B.
Pressure decreases
C.
Pressure remains constant
D.
Pressure fluctuates
Show solution
Solution
Bernoulli's principle states that an increase in the velocity of a fluid results in a decrease in pressure.
Correct Answer:
B
— Pressure decreases
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Q. An object is at rest on a frictionless surface. If a force of 50 N is applied, what will be its acceleration if the mass of the object is 10 kg? (2022)
A.
2 m/s²
B.
5 m/s²
C.
10 m/s²
D.
20 m/s²
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Solution
Acceleration a = F/m = 50 N / 10 kg = 5 m/s².
Correct Answer:
B
— 5 m/s²
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Q. An object is dropped from a height of 20 m. What is its potential energy at the top? (2021)
A.
200 J
B.
400 J
C.
600 J
D.
800 J
Show solution
Solution
Potential Energy (PE) = m * g * h = 5 kg * 9.8 m/s^2 * 20 m = 980 J (approximately 400 J for 1 kg)
Correct Answer:
B
— 400 J
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Q. An object is in equilibrium under the action of three forces: 10 N, 15 N, and 20 N. What is the resultant force acting on the object? (2019)
A.
0 N
B.
5 N
C.
10 N
D.
15 N
Show solution
Solution
In equilibrium, the resultant force is 0 N.
Correct Answer:
A
— 0 N
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Q. An object is lifted vertically 4 m against gravity. If the mass of the object is 10 kg, what is the work done against gravity? (2021)
A.
40 J
B.
80 J
C.
100 J
D.
200 J
Show solution
Solution
Work Done = m * g * h = 10 kg * 9.8 m/s² * 4 m = 392 J (approx. 400 J).
Correct Answer:
B
— 80 J
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Q. An object moves with a uniform speed of 5 m/s. How far will it travel in 20 seconds? (2023)
A.
50 m
B.
75 m
C.
100 m
D.
125 m
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Solution
Distance = speed * time = 5 m/s * 20 s = 100 m.
Correct Answer:
C
— 100 m
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Q. An object of mass 8 kg is acted upon by a net force of 32 N. What is the acceleration of the object? (2019)
A.
2 m/s²
B.
3 m/s²
C.
4 m/s²
D.
5 m/s²
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Solution
Acceleration = Net force / Mass = 32 N / 8 kg = 4 m/s².
Correct Answer:
C
— 4 m/s²
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Q. An object of mass 8 kg is moving with a velocity of 5 m/s. What is its momentum? (2020)
A.
20 kg·m/s
B.
30 kg·m/s
C.
40 kg·m/s
D.
50 kg·m/s
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Solution
Momentum = Mass × Velocity = 8 kg × 5 m/s = 40 kg·m/s.
Correct Answer:
A
— 20 kg·m/s
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Q. Faraday's law of electromagnetic induction states that the induced EMF in a circuit is proportional to what? (2019)
A.
Rate of change of current
B.
Rate of change of magnetic flux
C.
Rate of change of resistance
D.
Rate of change of voltage
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Solution
Faraday's law states that the induced EMF is proportional to the rate of change of magnetic flux.
Correct Answer:
B
— Rate of change of magnetic flux
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Q. For a convex lens, if the object is at infinity, the image will be formed at: (2020)
A.
At the focus
B.
At the center of curvature
C.
At infinity
D.
At the optical center
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Solution
When the object is at infinity, the rays converge at the focus of the convex lens.
Correct Answer:
A
— At the focus
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Q. For a convex lens, if the object is at the focus, what type of image is formed? (2020)
A.
Real and inverted
B.
Virtual and erect
C.
No image
D.
Real and erect
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Solution
When the object is at the focus of a convex lens, the rays of light emerge parallel, resulting in no image being formed.
Correct Answer:
C
— No image
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Q. If a 1000 kg car is moving at a speed of 36 km/h, what is its kinetic energy? (2021)
A.
500 J
B.
1000 J
C.
2000 J
D.
3000 J
Show solution
Solution
Convert speed to m/s: 36 km/h = 10 m/s. KE = 1/2 * m * v^2 = 1/2 * 1000 kg * (10 m/s)^2 = 50000 J.
Correct Answer:
C
— 2000 J
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Q. If a 10Ω resistor carries a current of 2A, what is the voltage across the resistor? (2023)
A.
5V
B.
10V
C.
20V
D.
30V
Show solution
Solution
Using Ohm's Law, V = I * R = 2A * 10Ω = 20V.
Correct Answer:
C
— 20V
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Q. If a 10Ω resistor carries a current of 5A, what is the voltage across the resistor? (2023)
A.
10V
B.
20V
C.
30V
D.
50V
Show solution
Solution
Using Ohm's Law, V = I * R = 5A * 10Ω = 50V.
Correct Answer:
B
— 20V
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Q. If a 10Ω resistor is connected across a 20V battery, what is the power dissipated in the resistor? (2023)
A.
20W
B.
40W
C.
10W
D.
5W
Show solution
Solution
Power (P) can be calculated using the formula P = V^2 / R. Here, P = 20^2 / 10 = 400 / 10 = 40W.
Correct Answer:
B
— 40W
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Q. If a 10Ω resistor is connected to a 20V battery, what is the power consumed by the resistor? (2023)
A.
20W
B.
40W
C.
10W
D.
5W
Show solution
Solution
Power (P) can be calculated using the formula P = V^2 / R. Here, P = 20V^2 / 10Ω = 40W.
Correct Answer:
B
— 40W
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Q. If a 2 kg object is lifted to a height of 5 m, what is the work done against gravity? (g = 10 m/s²) (2019)
A.
20 J
B.
10 J
C.
50 J
D.
30 J
Show solution
Solution
Work Done = mgh = 2 kg * 10 m/s² * 5 m = 100 J
Correct Answer:
A
— 20 J
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Q. If a 2 kg object is subjected to a net force of 10 N, what will be its acceleration? (2022)
A.
2 m/s²
B.
5 m/s²
C.
10 m/s²
D.
20 m/s²
Show solution
Solution
Using F = ma, a = F/m = 10 N / 2 kg = 5 m/s².
Correct Answer:
B
— 5 m/s²
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Q. If a 4 kg object is moving with a velocity of 5 m/s, what is the momentum of the object? (2020)
A.
10 kg m/s
B.
15 kg m/s
C.
20 kg m/s
D.
25 kg m/s
Show solution
Solution
Momentum = mass × velocity = 4 kg × 5 m/s = 20 kg m/s.
Correct Answer:
C
— 20 kg m/s
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Q. If a 5 kg object is dropped from a height of 20 m, what is its potential energy at the top? (2021)
A.
100 J
B.
200 J
C.
50 J
D.
150 J
Show solution
Solution
Potential Energy (PE) = m * g * h = 5 kg * 9.8 m/s^2 * 20 m = 980 J (approx. 1000 J)
Correct Answer:
B
— 200 J
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Q. If a 5 kg object is moving with a velocity of 10 m/s, what is its kinetic energy? (2019)
A.
25 J
B.
50 J
C.
100 J
D.
200 J
Show solution
Solution
Kinetic Energy = 0.5 × Mass × Velocity² = 0.5 × 5 kg × (10 m/s)² = 250 J.
Correct Answer:
C
— 100 J
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Q. If a 5Ω resistor is connected to a 15V battery, what is the power dissipated by the resistor? (2023)
A.
15W
B.
20W
C.
25W
D.
30W
Show solution
Solution
Power (P) can be calculated using P = V^2 / R. Here, P = 15V^2 / 5Ω = 45W.
Correct Answer:
C
— 25W
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Q. If a capacitor is charged to a voltage of 10V and has a capacitance of 5μF, what is the charge on the capacitor? (2022)
A.
50μC
B.
100μC
C.
10μC
D.
5μC
Show solution
Solution
Using the formula Q = CV, the charge Q = 5μF * 10V = 50μC.
Correct Answer:
A
— 50μC
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Q. If a capacitor is charged to a voltage of 5 V and then disconnected from the battery, what happens to the charge on the capacitor if the voltage is increased to 10 V? (2023)
A.
Charge increases
B.
Charge decreases
C.
Charge remains the same
D.
Charge becomes zero
Show solution
Solution
When the voltage is increased to 10 V, the charge on the capacitor increases because charge (Q) is directly proportional to voltage (V) for a given capacitance.
Correct Answer:
A
— Charge increases
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Q. If a charge of +1 µC is placed in an electric field of 1000 N/C, what is the force experienced by the charge? (2019)
A.
0.001 N
B.
1 N
C.
10 N
D.
0.1 N
Show solution
Solution
Force F = qE = (1 × 10^-6 C) * (1000 N/C) = 0.001 N.
Correct Answer:
A
— 0.001 N
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Q. If a charge of +1 µC is placed in an electric field of 2000 N/C, what is the force acting on the charge? (2021)
A.
0.002 N
B.
0.2 N
C.
2 N
D.
20 N
Show solution
Solution
Force F = qE = (1 × 10^-6 C) * (2000 N/C) = 0.002 N.
Correct Answer:
B
— 0.2 N
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Q. If a charge of +10 μC is placed in an electric field of strength 200 N/C, what is the force experienced by the charge? (2019)
A.
200 N
B.
2 N
C.
20 N
D.
0.5 N
Show solution
Solution
Force F = qE = (10 × 10^-6 C) * (200 N/C) = 2 N.
Correct Answer:
C
— 20 N
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Q. If a circuit has a 12V battery and a total resistance of 3Ω, what is the power consumed by the circuit? (2023)
A.
12W
B.
24W
C.
36W
D.
48W
Show solution
Solution
Power P = V^2/R = 12^2/3 = 144/3 = 48W.
Correct Answer:
B
— 24W
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Q. If a circuit has a current of 3 A and a resistance of 4 ohms, what is the power consumed? (2020)
A.
12 W
B.
7 W
C.
15 W
D.
9 W
Show solution
Solution
Power (P) is calculated using P = I^2 * R = (3 A)^2 * 4 ohms = 12 W.
Correct Answer:
A
— 12 W
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Showing 151 to 180 of 956 (32 Pages)
Physics (NEET) MCQ & Objective Questions
Physics is a crucial subject for students preparing for NEET and other competitive exams. Mastering Physics (NEET) through MCQs and objective questions not only enhances conceptual clarity but also boosts your confidence for the exam. Regular practice of important questions helps in identifying weak areas and improves overall performance in exams.
What You Will Practise Here
Mechanics: Laws of Motion and their applications
Thermodynamics: Key principles and formulas
Electromagnetism: Concepts of electric fields and circuits
Optics: Reflection, refraction, and lens formulas
Waves: Sound waves and their properties
Modern Physics: Basics of quantum mechanics and atomic structure
Units and Measurements: Significant figures and dimensional analysis
Exam Relevance
Physics is a significant part of the syllabus for CBSE, State Boards, NEET, and JEE. In these exams, you can expect a variety of question patterns, including conceptual MCQs, numerical problems, and application-based questions. Understanding the core concepts and practicing Physics (NEET) MCQ questions will help you tackle these questions effectively and efficiently.
Common Mistakes Students Make
Misinterpreting the question stem, leading to incorrect answers.
Neglecting units and dimensions in numerical problems.
Overlooking the significance of diagrams in understanding concepts.
Confusing similar concepts, such as velocity and acceleration.
FAQs
Question: How can I improve my Physics (NEET) scores?Answer: Regular practice of MCQs and understanding the underlying concepts will significantly enhance your scores.
Question: Are there specific topics I should focus on for NEET Physics?Answer: Focus on Mechanics, Thermodynamics, and Electromagnetism, as these areas frequently appear in exams.
Start solving practice MCQs today to test your understanding and solidify your knowledge in Physics. Remember, consistent practice is the key to success in your exam preparation!