For distinct interference pattern to be observed, necessary condition is that ratio of intensity of light emission by both the sources should be:

a}2:1

b}1:2

c}1:1

d}1:4

Question

For distinct interference pattern to be observed, necessary
condition is that ratio of intensity of light emission by both the
sources should be:
a}2:1
b}1:2
c}1:1
d}1:4

Kranav Sharma · Accepted Answer

Amplitudes of the two sources of light should be same to get a
crisp interference pattern Thus means that the intensity (which is
the square of amplitude) should also be the same or the ratio
should be 1:1
Thus, correct answer is option (c)

For distinct interference pattern to be observed, necessary condition is that ratio of intensity of light emission by both the sources should be: a}2:1 b}1:2 c}1:1 d}1:4

For distinct interference pattern to be observed, necessary condition is that ratio of intensity of light emission by both the sources should be:

a}2:1

b}1:2

c}1:1

d}1:4