Two coherent monochromatic light beams of intensities I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are 

(1) 5I and I

(2) 5I and 3I

(3) 9I and I

(4) 9I and 3I

Concept Questions :-

Superposition principle
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


If L is the coherence length and c the velocity of light, the coherent time is 

(1) cL

(2) Lc

(3) cL

(4) 1Lc

Concept Questions :-

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


If the amplitude ratio of two sources producing interference is 3 : 5, the ratio of intensities at maxima and minima is 

(1) 25 : 16

(2) 5 : 3

(3) 16 : 1

(4) 25 : 9

Concept Questions :-

Superposition principle
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


For constructive interference to take place between two monochromatic light waves of wavelength λ, the path difference should be 

(1) (2n1)λ4

(2) (2n1)λ2

(3) nλ

(d) (2n+1)λ2

Concept Questions :-

Young Double slit experiment
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Soap bubble appears coloured due to the phenomenon of 

(1) Interference

(2) Diffraction

(3) Dispersion

(4) Reflection

Concept Questions :-

Interference vs Diffraction
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Which of the following statements indicates that light waves are transverse 

(1) Light waves can travel in vacuum

(2) Light waves show interference

(3) Light waves can be polarized

(4) Light waves can be diffracted

Concept Questions :-

Polarization of light
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Interference was observed in interference chamber when the air was present, now the chamber is evacuated and if the same light is used, a careful observer will see

(1) No interference

(2) Interference with bright bands

(3) Interference with dark bands

(4) Interference in which width of the fringe will be slightly increased

Concept Questions :-

Superposition principle
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Ray diverging from a point source forms a wave front that is -

1. Cylindrical

2. Spherical

3. Plane

4. Cubical

Concept Questions :-

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Two coherent sources have intensity in the ratio of 1001. Ratio of (intensity) max/(intensity) min is 

(1) 1100

(2) 110

(3) 101

(4) 32

Concept Questions :-

Superposition principle
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


If two waves represented by y1=4sinωt and y2=3sinωt+π3 interfere at a point, the amplitude of the resulting wave will be about 

(1) 7

(2) 6

(3) 5

(4) 3.5

Concept Questions :-

Superposition principle
To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level: