EASY
12th Uttar Pradesh Board
IMPORTANT
Earn 100

Derive the equation of the balanced state in a Wheatstone bridge using Kirchhoff’s laws.

Important Questions on Sample Paper 1

EASY
12th Uttar Pradesh Board
IMPORTANT
Draw the graph showing intensity distribution of fringes with phase angle due to diffraction through a single slit. What is the width of the  central maximum in comparison to that of a secondary maximum?
EASY
12th Uttar Pradesh Board
IMPORTANT

A ray PQ is incident normally on the face AB of a triangular prism of refracting angle 60° as shown in the figure. The prism is made of a transparent material of refractive index 23. Trace the path of the ray as it passes through the prism. Calculate the angle of emergence and the angle of deviation.

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EASY
12th Uttar Pradesh Board
IMPORTANT
Write two points of difference between an interference pattern and a diffraction pattern.
EASY
12th Uttar Pradesh Board
IMPORTANT

(i) A ray of light incident on face AB of an equilateral glass prism, shows minimum deviation of 30°. Calculate the speed of the light through the prism.

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(ii) Find the angle of incidence at face AB so that the emergent ray grazes along the face AC.