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Derive the laws of reflection of light using Huygens’ principle.
Concept: Huygens’ Theory
White light consists of wavelengths from 400 nm to 700 nm. What will be the wavelength range seen when white light is passed through a glass of refractive index 1.55?
Concept: Introduction of Wave Optics
Which of the following cannot produce two coherent sources?
Concept: Introduction of Wave Optics
A Plane Wavefront of light of wavelength 5500 A.U. is incident on two slits in a screen perpendicular to the direction of light rays. If the total separation of 10 bright fringes on a screen 2 m away is 2 cm. Find the distance between the slits.
Concept: Introduction of Wave Optics
Describe Young’s double-slit experiment with a neat diagram showing points of maximum and minimum intensity.
Concept: Resolving Power
Prove that the frequency of beats is equal to the difference between the frequencies of the two sound notes giving rise to beats.
Concept: Beats
Explain analytically how the stationary waves are formed
Concept: Formation of Stationary Waves on String
Show that all harmonics are present on a stretched string between two rigid supports.
Concept: Study of Vibrations in a Finite Medium
Differentiate between free and forced vibrations.
Concept: Free and Forced Vibrations
Discuss different modes of vibrations in an air column of a pipe open at both the ends.
Concept: Study of Vibrations of Air Columns
Explain the formation of stationary waves by analytical method. Show that nodes and antinodes are equally spaced in stationary waves.
Concept: Formation of Stationary Waves on String
In the law of tension, the fundamental frequency of the vibrating string is, ______
Concept: Study of Vibrations of Air Columns
A sonometer wire of length 1 m is stretched by a weight of 10 kg. The fundamental frequency of vibration is 100 Hz. Determine the linear density of the material of the wire.
Concept: Study of Vibrations of Air Columns
State Wein's displacement law
Concept: Wien's Displacement Law
Draw a neat labelled diagram for Ferry's perfectly black body.
Concept: Qualitative Ideas of Black Body Radiation
Show graphical representation of energy distribution spectrum of perfectly black body.
Concept: Qualitative Ideas of Black Body Radiation
State any four assumptions of kinetic theory of gases.
Concept: Assumptions of Kinetic Theory of Gases
A voltmeter has a resistance of 30 Ω. What will be its reading, when it is connected across a cell of emf 2 V having internal resistance 10 Ω?
Concept: Current Electricity
On what factors do the degrees of freedom depend?
Concept: Law of Equipartition of Energy
Draw a p-V diagram and explain the concept of positive and negative work. Give one example each.
Concept: Heat Engine
