HSC Science इयत्ता १२ - Tamil Nadu Board of Secondary Education Question Bank Solutions

Explain in detail the nuclear force.

Calculate the radius of the earth if the density of the earth is equal to the density of the nucleus. [mass of earth 5.97 x 10²⁴ kg].

The ratio of maximum and minimum intensities in an interference pattern is 36 : 1. What is the ratio of the amplitudes of the two interfering waves?

Light of wavelength 600 nm that falls on a pair of slits producing interference pattern on a screen in which the bright fringes are separated by 7.2 mm. What must be the wavelength of another light which produces bright fringes separated by 8.1 mm with the same apparatus?

Define bandwidth of transmission system.

Explain the basic elements of the communication system with the necessary block diagram.

Two coherent monochromatic light beams of intensities I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are ______.

First diffraction minimum due to a single slit of width 1.0 × 10^-5 cm is at 30°. Then wavelength of light used is ______.

What is diffraction?

Differentiate between Fresnel and Fraunhofer diffraction.

Mention the differences between interference and diffraction.

Discuss the special cases on first minimum in Fraunhofer diffraction.

What is Fresnel’s distance? Obtain the equation for Fresnel’s distance.

What is a diffraction grating?

What is resolution?

What is Rayleigh’s criterion?

Discuss diffraction at single slit and obtain the condition for n^th minimum.

Discuss the diffraction at a grating and obtain the condition for the mth maximum.

Discuss the experiment to determine the wavelength of monochromatic light using a diffraction grating.

Discuss the experiment to determine the wavelength of different colours using diffraction grating.