Q. A projectile is launched at an angle of 30° with the horizontal with an initial velocity of 40 m/s. What is the horizontal range of the projectile? (Take g = 10 m/s²)
A.
160 m
B.
200 m
C.
80 m
D.
120 m
Solution
Range R = (u² * sin(2θ))/g = (40² * sin(60°))/10 = (1600 * √3/2)/10 = 80√3 m ≈ 138.56 m.
Q. A projectile is launched with an initial velocity of 30 m/s at an angle of 30 degrees. What is the horizontal range of the projectile? (Take g = 10 m/s²)
A.
90 m
B.
75 m
C.
100 m
D.
120 m
Solution
Range R = (u² * sin(2θ))/g = (30² * sin(60°))/10 = (900 * √3/2)/10 = 45√3 m ≈ 90 m.
Q. A projectile is launched with an initial velocity of 30 m/s at an angle of 30 degrees to the horizontal. What is the horizontal range of the projectile? (Take g = 10 m/s²)
A.
90 m
B.
75 m
C.
100 m
D.
120 m
Solution
Range R = (u² * sin(2θ))/g = (30² * sin(60°))/10 = (900 * √3/2)/10 = 45√3 m ≈ 90 m.
Q. A projectile is launched with an initial velocity of 30 m/s at an angle of 30° to the horizontal. What is the horizontal range of the projectile? (Take g = 10 m/s²)
A.
90 m
B.
75 m
C.
100 m
D.
120 m
Solution
Range R = (u² * sin(2θ))/g = (30² * sin(60°))/10 = (900 * √3/2)/10 = 45√3 m ≈ 90 m.
Q. A projectile is launched with an initial velocity of 40 m/s at an angle of 30 degrees. What is the horizontal range of the projectile? (Take g = 10 m/s²)
A.
160 m
B.
200 m
C.
80 m
D.
120 m
Solution
Range R = (u² * sin(2θ))/g = (40² * sin(60°))/10 = (1600 * √3/2)/10 = 80√3 m ≈ 138.56 m.
Q. A radar system can detect objects up to a distance of 100 km. If it scans at a speed of 20 km/h, how long will it take to complete a full scan? (2023)
A.
4 hours
B.
5 hours
C.
6 hours
D.
7 hours
Solution
Time = Distance / Speed = 100 km / 20 km/h = 5 hours
Q. A river basin has an area of 200 km². If the average rainfall is 1000 mm per year, what is the total volume of water received by the basin in a year?
A.
200 million m³
B.
100 million m³
C.
300 million m³
D.
400 million m³
Solution
Volume = Area × Rainfall = 200 km² × 1000 mm = 200 km² × 1 m = 200 million m³.
Q. A river basin has an area of 200 square kilometers. If the average rainfall is 800 mm per year, how much water (in cubic meters) falls on the basin annually? (2019)
A.
160000000 m³
B.
200000000 m³
C.
240000000 m³
D.
320000000 m³
Solution
Water volume = Area × Rainfall = 200 km² × 800 mm = 200000000 m³.
Q. A river basin has an area of 2000 km². If the average rainfall is 800 mm per year, what is the total volume of water received by the basin in cubic meters? (2000)
A.
1.6 billion m³
B.
1.2 billion m³
C.
1 billion m³
D.
800 million m³
Solution
Volume = Area × Rainfall = 2000 km² × 0.8 m = 1.6 billion m³.
Q. A river basin has an area of 500 km². If the average rainfall is 800 mm per year, what is the total volume of water received by the basin in a year? (2019)
A.
400,000,000 m³
B.
500,000,000 m³
C.
600,000,000 m³
D.
700,000,000 m³
Solution
Volume = area × rainfall = 500 km² × 800 mm = 500,000,000 m³.
General Knowledge (NDA) is a crucial component of various competitive exams, including the NDA entrance test. Mastering this subject not only enhances your awareness of current affairs but also significantly boosts your exam scores. Practicing MCQs and objective questions helps you identify important topics and improves your ability to tackle exam questions effectively. By engaging with practice questions, you can solidify your understanding and prepare thoroughly for your upcoming exams.
What You Will Practise Here
Current Affairs: National and International Events
History: Key Dates and Important Figures
Geography: Physical and Political Maps
Indian Polity: Constitution and Governance
Economics: Basic Concepts and Terminology
Science: Fundamental Principles and Discoveries
General Awareness: Sports, Awards, and Recognitions
Exam Relevance
General Knowledge is a significant section in various exams such as CBSE, State Boards, NEET, and JEE. In these assessments, you can expect questions that test your understanding of historical events, geographical facts, and current affairs. Common question patterns include multiple-choice questions that require you to select the correct answer from a set of options, making it essential to be well-prepared with important General Knowledge (NDA) questions for exams.
Common Mistakes Students Make
Overlooking current affairs, assuming they are less important.
Confusing similar historical events or dates.
Neglecting to revise basic geographical concepts.
Misunderstanding key terms in Indian polity and governance.
Failing to connect economic principles with real-world scenarios.
FAQs
Question: What are the best ways to prepare for General Knowledge (NDA)? Answer: Regularly read newspapers, follow current affairs, and practice MCQs to enhance your knowledge.
Question: How can I improve my speed in answering General Knowledge questions? Answer: Time yourself while practicing and focus on understanding concepts rather than rote memorization.
Start your journey towards mastering General Knowledge (NDA) today! Solve practice MCQs and test your understanding to ensure you are well-prepared for your exams. Every question you tackle brings you one step closer to success!
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