JEE Advanced 2021 Full Test 1 Paper 1

Show Para Hide Para

(One or More than one correct type)
This section contains 06 multiple choice questions. Each question has FOUR options (A), (B), (C) and(D). ONE OR MORE THAN ONE of these four options is(are) correct.

Question : 10 of 54

Marks: +1, -0

A lens of focal length f=40cm is cut along the diameter into two equal halves. In this process, a layer of thickness t=1mm is lost, then halves are put together to form a composite lens. In between focal plane and the composite lens a narrow slit is placed very close to the focal plane |u|<|f|. The slit is emitting monochromatic light of wavelength 0.6µm. Behind the lens a screen is located at a distance L=0.5m from it as shown:

Fringe width is 0.12 mm
Fringe width is 0.24 mm.
Length of interference pattern is 1/ 8 cm
Length of interference pattern is 1/16 cm

Validate

Go to Question:

Prev Question

Next Question