Ray Optics and Wave Optics

Think and Answer!

Last Updated :
Discuss
Comments

Question 1

Which of the following statements is correct according to the laws of reflection?

  • The angle of incidence is equal to the angle of refraction.

  • The incident ray, the reflected ray, and the normal all lie in the same plane.

  • The angle of incidence is always greater than the angle of reflection.

  • The angle of incidence is always smaller than the angle of reflection.

Discuss it

Question 2

The blue color of the sky is due to the scattering of light. Which of the following best explains this phenomenon?

  • Rayleigh scattering.

  • Tyndall scattering.

  • Mie scattering.

  • Total internal reflection.

Discuss it

Question 3

What is the phenomenon responsible for the twinkling of stars?

  • Total internal reflection.

  • Diffraction.

  • Atmospheric scattering.

  • Atmospheric refraction.

Discuss it

Question 4

How is a rainbow formed by water droplets?

  • By total internal reflection inside water droplets.

  • By diffraction at the surface of the droplet.

  • By scattering of light by the droplets.

  • By refraction, internal reflection, and dispersion of light in water droplets.

Discuss it

Question 5

What causes the phenomenon of advanced sunrise and delayed sunset?

  • Total internal reflection in the atmosphere.

  • Refraction of light in the Earth's atmosphere.

  • Earth's curvature.

  • Diffraction of light by the Earth.

Discuss it

Question 6

Why does the sky appear blue during the day?

  • Due to the Rayleigh scattering of sunlight by air molecules.

  • Due to the diffraction of light by clouds.

  • Due to the scattering of light by dust particles.

  • Due to total internal reflection in the atmosphere.

Discuss it

Question 7

Which of the following is a major difference between a mirror and a lens?

  • A mirror reflects light, while a lens refracts light.

  • A mirror refracts light, while a lens reflects light.

  • Both mirrors and lenses reflect light.

  • Both mirrors and lenses refract light.

Discuss it

Question 8

In which of the following cases does total internal reflection occur?

  • When light travels from air to glass and the angle of incidence is greater than the critical angle.

  • When light travels from water to air, and the angle of incidence is less than the critical angle

  • When light passes through a lens.

  • When light passes through a prism at an angle of 90°.

Discuss it

Question 9

In Young's double-slit experiment, the interference pattern is observed on a screen. What does the bright fringe correspond to?

  • Constructive interference.

  • Destructive interference.

  • Reflection

  • Diffraction

Discuss it

Question 10

Which of the following phenomena can be explained by wave optics but not by ray optics?

  • Reflection

  • Refraction

  • Diffraction

  • Total internal reflection

Discuss it
Tags:
Physics

There are 10 questions to complete.

Take a part in the ongoing discussion
We use cookies to ensure you have the best browsing experience on our website. By using our site, you acknowledge that you have read and understood our Cookie Policy & Privacy Policy