Wave Optics Test

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Wave Optics Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

The propagation of light is best described by-

A
particle model

B
Rectilinear propagation of light

C
wave model

D
dual / schizophrenic model

Solution

According to Maxwell's Electromagnetic theory of light, Light is an electromagnetic wave and it has a dual nature i.e it has both wave nature and particulate nature.
Question 2
1 / -0

Two waves of same intensity produce interference. If intensity at maximum is 4I, then intensity at the minimum will be

A
0

B
21

C
31

D
41

Solution

I₁ = I₂ = I = a²
I_max. = (a + a)² + (2a)² = 4a² = 4I
I_min. = (a - a)2 = 0
Question 3
1 / -0

When light passes from one medium to another, which of the following does not change?

A
Frequency

B
Wavelength

C
Amplitude

D
Velocity
Question 4
1 / -0

wave front is

A
locus of all adjacent points at which the Electric field is the same

B
series of points on the wave with same amplitude

C
series of points on the wave with same frequency

D
locus of all adjacent points at which the phase of vibration of a physical quantity associated with the wave is the same

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.
Question 5
1 / -0

In refraction, light waves bend on passing from one medium to the second medium because in the second medium,

A
the frequency is different

B
the coefficient of elasticity is different

C
the speed is different

D
the amplitude is smaller
Question 6
1 / -0

Emission and absorption is best described by-

A
particle model

B
dual / schizophrenic model

C
Rutherford"s model of an atom

D
a wave model

Solution

Emission and absorption is best described by a particle model.
Question 7
1 / -0

Light is a form of

A
electromagnetic radiation

B
magnetic radiation

C
electronic radiation

D
None of these
Question 8
1 / -0

The following question has four choices out of which ONLY ONE is correct.

The unit of luminous intensity is

A
watt

B
phot

C
candle power

D
candela
Question 9
1 / -0

The following question has four choices out of which ONLY ONE is correct.

Fraunhofer spectrum is a

A
line absorption spectrum

B
band absorption spectrum

C
line emission spectrum

D
band emission spectrum

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Re-Attempt Weekly Quiz Competition

Wave Optics Test - 1

Result

Wave Optics Test - 1

Score

-

Rank

-

SHARING IS CARING

Question 1

particle model

Rectilinear propagation of light

wave model

dual / schizophrenic model

Solution

Question 2

0

21

31

41

Solution

Question 3

Frequency

Wavelength

Amplitude

Velocity

Question 4

locus of all adjacent points at which the Electric field is the same

series of points on the wave with same amplitude

series of points on the wave with same frequency

locus of all adjacent points at which the phase of vibration of a physical quantity associated with the wave is the same

Solution

Question 5

the frequency is different

the coefficient of elasticity is different

the speed is different

the amplitude is smaller

Question 6

particle model

dual / schizophrenic model

Rutherford"s model of an atom

a wave model

Solution

Question 7

electromagnetic radiation

magnetic radiation

electronic radiation

None of these

Question 8

watt

phot

candle power

candela

Question 9

line absorption spectrum

band absorption spectrum

line emission spectrum

band emission spectrum

User

Question Analysis

My Perfomance

Score

-

Rank

-

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