Wave Optics - Online Test

Q1. Is light a particle or a wave?
Answer : Option A
Explaination / Solution:

Light is an electro magnetic wave, it has dual nature and behave as both particle and wave

Q2. The propagation of light is best described by,
Answer : Option D
Explaination / Solution:
No Explaination.


Q3. Emission and absorption is best described by,
Answer : Option A
Explaination / Solution:
No Explaination.


Q4. wave front is
Answer : Option D
Explaination / Solution:

a locus of points, which oscillate in phase is called a wavefront; thus a wavefront is defined as a surface of constant phase. The speed with which the wavefront moves outwards from the source is called the speed of the wave.

Q5. A ray is an imaginary
Answer : Option D
Explaination / Solution:
No Explaination.


Q6. According to Huygens principle
Answer : Option B
Explaination / Solution:
No Explaination.


Q7. According to Huygens construction relation between old and new wave fronts is
Answer : Option C
Explaination / Solution:
No Explaination.


Q8. Relation between ray and wave front is
Answer : Option D
Explaination / Solution:

Huygens’ construction tells us that the new wavefront is the forward envelope of the secondary waves. When the speed of light is independent of direction, the secondary waves are spherical. The rays are then perpendicular to the wavefronts.

Q9. Approximate Doppler shift formula for light is
Answer : Option D
Explaination / Solution:
No Explaination.


Q10. According to superposition principle in relation to displacements produced by a number of waves
Answer : Option D
Explaination / Solution:
No Explaination.