Assertion (A) : In YDSE, the fringes become indistinct if one of the slits is covered wityh cellophane paper.
Reason (R ) : The cellophane paper decreases the wavelength of light.

A : In Young.s double slit experiment, the fringes become indistinct if one of the slits is covered with cellophane paper. R : The cellophane paper decrease the wavelength of light.

Statement-1 : In Young’s double slit experiment, the fringes become indistinct if one of the slits is covered with cellophane paper. Statement-2 : The cellophane paper decreases the wavelength of light.

The question given below consist of an assertion (A) and a reason ( R). Use the following key to choose the appropriate answer to these questions from the codes (a), (b), ( c) and (d) given below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is NOT the correct explanation of A. (c) A is true but R is false. (d) A is false and R is also false. Assertion: In Young's double slit experiment, if one of the slits is covered with a cellophane paper, the fringe becomes instinct. Reason:The wavelength of light decreases due to cellophane paper.

In Young's experiment with one source and two slits, one of the slits is covered with black paper. Then

Assertion (A) : Young's double slit experiment can be performed using a source of white light. Reason (R ) : The wavelength of red light is less than wavelength of other colors in white light.

Assertion (A) : If the whole apparatus of YDSE is immersed in a liquid, then the fringe width will decrease Reason (R ) : The wavelength of light in water is more than that of air.