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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
Show that only odd harmonics are present in an air column vibrating in a pipe closed at one end.
Concept: Free and Forced Vibrations
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
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
Four resistances 6Ω, 6Ω, 6Ω and 18Ω form a Wheatstone bridge. Find the resistance which connected across the 18Ω resistance will balance the network.
Concept: Wheatstone Bridge
Which one of the following particles cannot be accelerated by a cyclotron?
(A) Electrons
(B) Protons
(C) Deuterons
(D) α- particles
Concept: Cyclotron
State Ampere’s circuital law.
Concept: Ampere’s Circuital Law
Obtain an expression for magnetic induction along the axis of the toroid.
Concept: Ampere’s Circuital Law
Currents of equal magnitude pass through two long parallel wires having a separation of 1.35 cm. If the force per unit length on each of the wires is 4.76 x 10-2 N, what must be I ?
Concept: Magnetic Field Produced by a Current in a Circular Arc of a Wire
A circular loop of radius 9.7 cm carries a current 2.3 A. Obtain the magnitude of the magnetic field
(a) at the centre of the loop
(b) at a distance of 9.7 cm from the centre of the loop but on the axis.
Concept: Magnetic Lines for a Current Loop
The magnetic field at a distance of 2.4 cm from a long straight [current-carrying] wire is 16 µT. What is the current through the wire?
Concept: Magnetic Field Produced by a Current in a Circular Arc of a Wire
