Engineering Physics II Mock Test 2

10%

Question 1 of 10

1. Arrange the slabs in the increasing order of the refractive index.

C > B > A

A > B > C

C > A > B

B > A > C

Question 1 of 10

Question 2 of 10

2. What is the variation in the pattern observed for single slit Fresnel diffraction than single slit Fraunhofer Diffraction?

The fringes are too thin

The region of minimum intensity is not completely dark

The pattern is not hyperbolic

The fringes are colored

Question 2 of 10

Question 3 of 10

3. Young’s Double Slit Experiment was conducted in ______________

1925

1802

1889

1930

Question 3 of 10

Question 4 of 10

4. The mass of a photon with wavelength 3.6 Å is _____________

6.139 X 10^-33 kg

3.139 X 10^-33 kg

5.139 X 10^-33 kg

4.139 X 10^-33 kg

Question 4 of 10

Question 5 of 10

5. Who gave the quantum theory of light?

Max Planck

Heisenberg

Albert Einstein

Michaelson Morley

Question 5 of 10

Question 6 of 10

6. What happens with the Fraunhofer single slit diffraction pattern if the whole apparatus is immersed in water?

Width of central maximum decreases

Width of central maximum increases

The Wavelength of light increases

Frequency of light decreases

Question 6 of 10

Question 7 of 10

7. Which theory was first to consider that light requires no medium for its propagation?

Maxwell’s Electromagnetic Theory

Quantum theory of light

Huygen’s Wave Theory of Light

Corpuscular theory

Question 7 of 10

Question 8 of 10

8. According to stoke’s law, the expression for maxima is: 2μtcosr = ____________

2nλ

nλ

(2n + 1) λ/2

(n + 1) λ/2

Question 8 of 10

Question 9 of 10

9. What is the effective distance between the source of light and the screen in Fraunhofer Diffraction?

Focal length of the convex lens

Less than Focal Length of the convex lens

Greater than the focal length of the convex lens and less than infinite

Infinite

Question 9 of 10

Question 10 of 10

10. What kind of sources are required for Young’s Double Slit experiment?

Intense

Coherent

Incoherent

Bright

Question 10 of 10