Embibe Experts Solutions for Chapter: Solved Physics Paper-1, Exercise 1: Exercise

If the fringe width obtained in Young's double-slit experiment is $1.33 \mathrm{mm}$, then on immersing the whole set up in the water with refractive index $1.33$, new fringe width will be

Twelve resistors each of resistance $r$ are joined to form a cube as shown in the figure given below. Find the equivalent resistance between the diagonally opposite points $A$ and $F$.

When the ether hypothesis was ended?

What do you know about radio-carbon dating ?

The output of an unregulated dc power supply needs to be regulated. Name the device that can be used for this purpose and draw the relevant circuit diagram.

Draw a circuit diagram of a $p-n$ junction diode in forward bias.

Show using a proper diagram how unpolarized light can be linearly polarised by reflection from a transparent glass surface.

A parallel beam of light falls normally on the first face of a prism of small angle.The portion of the beam which is refracted at the second surface is deviated through an angle of $6°{30}^{\text{'}}$and the portion which is reflected at the second surface and emerges again at the first surface makes an angle of $1°{15}^{\text{'}}$With the direction of the incident beam. Calculate the angle of the prism and the refractive index of glass.