EASY

Earn 100

The tourmaline crystal

50% studentsanswered this correctly

Important Questions on Wave Optics

EASY

Physics>Optics>Wave Optics>Huygen's Principle

Which of the following are true?

A. Speed of light in vacuum is dependent on the direction of propagation.

B. Speed of light in a medium is independent of the wavelength of light.

C. The speed of light is independent of the motion of the source.

D. The speed of light in a medium is independent of intensity.

Choose the correct answer from the question given below :

MEDIUM

Physics>Optics>Wave Optics>Huygen's Principle

On a hot summer night, the refractive index of air is the smallest near the ground and increases with a height from the ground. When a light beam is directed horizontally, the Huygens' principle leads us to conclude that as it travels, the light beam,

EASY

Physics>Optics>Wave Optics>Huygen's Principle

For light diverging from a finite point source

EASY

Physics>Optics>Wave Optics>Huygen's Principle

A galaxy moves with respect to the earth so that Sodium line of

589.0 nm

is observed at

589.6 nm .

The speed of the galaxy is

MEDIUM

Physics>Optics>Wave Optics>Huygen's Principle

A light beam travelling along the

X

-axis with planar wavefront is incident on a medium of thickness,

t

. In the region, where light is falling the refractive index can be taken to be varying such that

(\frac{d n}{d y}) > 0

. The light beam on the other side of the medium will emerge

EASY

Physics>Optics>Wave Optics>Huygen's Principle

Due to Doppler's effect the shift in wavelength observed is

0.1 Å

for a star producing wavelength

6000 Å

. Velocity of recession of the star will be

EASY

Physics>Optics>Wave Optics>Huygen's Principle

A plane wave front is incident on a thin prism, thin convex lens and a concave mirror separately. The wave front(s) emerging out from the

EASY

Physics>Optics>Wave Optics>Huygen's Principle

State Huygen’s principle of diffraction of light.

EASY

Physics>Optics>Wave Optics>Huygen's Principle

Huygens' wave theory of light cannot explain.

MEDIUM

Physics>Optics>Wave Optics>Huygen's Principle

A beam of light with a plane wavefront needs to be transformed into one with a convergent spherical wavefront. For this purpose, which of the following may be suitable?

EASY

Physics>Optics>Wave Optics>Huygen's Principle

If a star emitting orange light moves away from the earth, its colour

EASY

Physics>Optics>Wave Optics>Huygen's Principle

Considering the fact that the speed of light in glass is not independent of the colour of light, which of the statement is true?

MEDIUM

Physics>Optics>Wave Optics>Huygen's Principle

State Huygens's principle of wave theory? Using this principle derive the law of reflection or refraction. Which quantity remains unchangedwhen a light wave suffers reflection of refraction?

HARD

Physics>Optics>Wave Optics>Huygen's Principle

Explain refraction of light on the basis of wave theory. Hence prove the laws of refraction.

EASY

Physics>Optics>Wave Optics>Huygen's Principle

Differentiate between sky wave propagation and space wave propagation.

HARD

Physics>Optics>Wave Optics>Huygen's Principle

Discuss Huygens' principle. Prove the laws of reflection of light using this principle.

EASY

Physics>Optics>Wave Optics>Huygen's Principle

Explain Huygen's principle of secondary wavelets.