Is it always true that for two sources of equal intensity, the number of photons emitted in a given time are equal?

In one joule of energy, the number of photons with wave number equal to x is

Q2 is always equal to

A red bulb and violet bulb of equal power emits n_(R ) and n_(v) number of photons in a given time, then

In Young s double slit experiment, the phase different between two coherent sources of equal intensity is π/3.The intensity at a point which is at equal distance from the two slits is (l0 is maximum intensity)

Two monochromatic beam A and B of equal intensity I, hit a screen. The number of photons hitting the screen by beam A is twice that by beam B. Then what inference can you make about their frequencies?

Median is always equal to

Is it necessary to have two waves of equal intensity to study interfrence pattern? Will there be an effect on clarity if the waves have unequal intensity?

Contrapositive of the statement. If the squares of two numbers are equal then the numbers are equal is (A) If the squares of two numbers are equal then the numbers are equal (B) If the squares of two numbers are not equal then the numbers are not equal (C) If two numbers are not equal then the square of the numbers are not equal (D) If squares of two numbers are equal then the numbers are to equal

D_(1) is always equal to

D_(5) is always equal to