Engineering & Architecture Admissions

Q. In a thin film of oil on water, which color will appear at the topmost layer if the film thickness is such that it causes constructive interference for blue light?
  • A. Red
  • B. Green
  • C. Blue
  • D. Yellow
Q. In a thin film of oil on water, which color will appear at the topmost layer if the thickness of the film is such that it causes constructive interference for blue light?
  • A. Red
  • B. Green
  • C. Blue
  • D. Yellow
Q. In a thin film of oil on water, which color will appear at the topmost layer when viewed from above?
  • A. Red
  • B. Blue
  • C. Green
  • D. Yellow
Q. In a thin film of oil on water, which color will be most prominently seen due to constructive interference?
  • A. Red
  • B. Blue
  • C. Green
  • D. Yellow
Q. In a thin film of oil on water, which color will be most prominently visible due to constructive interference?
  • A. Red
  • B. Blue
  • C. Green
  • D. Yellow
Q. In a thin film of oil on water, which phenomenon is responsible for the colorful patterns observed?
  • A. Diffraction
  • B. Refraction
  • C. Interference
  • D. Reflection
Q. In a thin film of soap, if the refractive index is 1.33 and the wavelength of light in air is 500 nm, what is the effective wavelength in the film?
  • A. 375 nm
  • B. 500 nm
  • C. 600 nm
  • D. 750 nm
Q. In a thin film of soap, why do we see different colors when viewed at different angles?
  • A. Due to diffraction
  • B. Due to varying thickness of the film
  • C. Due to reflection only
  • D. Due to absorption of light
Q. In a thin film of soap, why do we see different colors?
  • A. Different wavelengths interfere constructively at different angles
  • B. Different wavelengths are absorbed
  • C. Different wavelengths reflect differently
  • D. Different wavelengths travel at different speeds
Q. In a thin lens, if the object distance is 15 cm and the image distance is 10 cm, what is the magnification?
  • A. 0.67
  • B. 1.5
  • C. 1
  • D. 2
Q. In a toroidal solenoid with N turns and carrying current I, what is the magnetic field inside the toroid?
  • A. μ₀NI/2πr
  • B. μ₀NI/r
  • C. μ₀NI/4πr
  • D. μ₀NI/2r
Q. In a toroidal solenoid, how does the magnetic field strength depend on the number of turns per unit length?
  • A. Directly proportional
  • B. Inversely proportional
  • C. Independent
  • D. Exponential relation
Q. In a toroidal solenoid, what is the expression for the magnetic field inside the toroid?
  • A. B = μ₀nI
  • B. B = μ₀I/2πr
  • C. B = μ₀I/n
  • D. B = μ₀I/4πr²
Q. In a toroidal solenoid, what is the magnetic field inside the toroid?
  • A. 0
  • B. μ₀nI
  • C. μ₀I/2πr
  • D. μ₀I/n
Q. In a total internal reflection scenario, if the angle of incidence is 45° and the refractive index of the medium is 1.5, what is the angle of refraction?
  • A. 45°
  • B. 30°
  • C. 60°
  • D. Total internal reflection occurs
Q. In a total internal reflection, what is the minimum angle of incidence for light traveling from water to air?
  • A. 30 degrees
  • B. 45 degrees
  • C. 60 degrees
  • D. 90 degrees
Q. In a transformer, if the primary coil has 100 turns and the secondary coil has 200 turns, what is the relationship between primary and secondary voltages?
  • A. Vp/Vs = 1/2
  • B. Vp/Vs = 2
  • C. Vp/Vs = 1
  • D. Vp/Vs = 2/1
Q. In a transformer, if the primary coil has 100 turns and the secondary coil has 200 turns, what is the relationship between the primary and secondary voltages?
  • A. V_primary = V_secondary
  • B. V_primary < V_secondary
  • C. V_primary > V_secondary
  • D. V_primary = 2 * V_secondary
Q. In a transformer, if the primary coil has 100 turns and the secondary coil has 50 turns, what is the relationship between the primary voltage (Vp) and the secondary voltage (Vs)?
  • A. Vp = Vs
  • B. Vp = 2Vs
  • C. Vs = 2Vp
  • D. Vp = 0.5Vs
Q. In a transformer, if the primary coil has 100 turns and the secondary coil has 50 turns, what is the relationship between the primary and secondary voltages?
  • A. V1/V2 = 2
  • B. V1/V2 = 0.5
  • C. V1/V2 = 1
  • D. V1/V2 = 4
Q. In a transformer, if the primary coil has 200 turns and the secondary coil has 50 turns, what is the turns ratio?
  • A. 4:1
  • B. 1:4
  • C. 2:1
  • D. 1:2
Q. In a transformer, if the primary coil has 200 turns and the secondary coil has 50 turns, what is the relationship between the primary and secondary voltages?
  • A. Vp/Vs = 4
  • B. Vp/Vs = 0.25
  • C. Vp/Vs = 2
  • D. Vp/Vs = 1
Q. In a two-slit interference pattern, if the distance between the slits is increased, what happens to the number of visible fringes on the screen?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. In a two-slit interference pattern, if the distance between the slits is increased, what happens to the fringe separation?
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
Q. In a two-slit interference pattern, if the distance to the screen is doubled, what happens to the fringe spacing?
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. In a two-slit interference pattern, if the intensity at the center is I0, what is the intensity at the first minimum?
  • A. 0
  • B. I0
  • C. I0/2
  • D. I0/4
Q. In a two-slit interference pattern, if the intensity at the center is I_0, what is the intensity at the first minimum?
  • A. 0
  • B. I_0
  • C. I_0/2
  • D. I_0/4
Q. In a two-slit interference pattern, if the intensity of light from one slit is increased, what happens to the overall intensity of the pattern?
  • A. It decreases
  • B. It remains the same
  • C. It increases
  • D. It becomes zero
Q. In a uniform circular motion, which of the following quantities remains constant?
  • A. Velocity
  • B. Acceleration
  • C. Speed
  • D. Centripetal force
Q. In a uniform electric field, how does the electric potential change with distance?
  • A. Linearly
  • B. Quadratically
  • C. Exponentially
  • D. Remains constant
Showing 4441 to 4470 of 9741 (325 Pages)