Physics

The diagram below shows a loop of wire carrying current I:
Displacement distance graph of two sound waves A and B
State the conditions required for total internal reflection
The human ear can detect continuous sounds in the frequency range
Draw a diagram to show a block and tackle pulley system having a velocity ratio
Define scattering
A virtual, diminished image is formed when an object is placed
The diagram below shows a pulley arrangement
Copy the diagram given below and complete the path of light ray
Two waves of the same pitch have amplitudes in the ratio 1:3
The diagram below shows a claw hammer used to remove a nail
Two bodies A and B have masses in the ratio 5:1
Name the physical quantity which is measured in calories
Define couple. State the S.I. unit of moment of couple
Define critical angle
An electromagnetic radiation is used for photography in fog
What is the relation between the refractive index of water with respect to air
The specific heat capacity of a substance A is 3,800
A man playing a flute is able to produce notes of different frequencies
The diagram below shows a light source P embedded
If the lens is placed in water instead of air, how does its focal length change
How does an increase in the temperature affect the specific resistance
Why is a nuclear fusion reaction called a thermo nuclear reaction
A magnet kept at the centre of two coils A and B is moved to and fro
State whether the specific heat capacity of a substance
Calculate the effective resistance across AB
Is it possible for a hydrogen nucleus to emit an alpha particle
Define resonant vibrations
State two ways to increase the speed of rotation of a D.C. motor
A body of mass 10 kg is kept at a height of 5 m
A uniform meter scale is in equilibrium
How does the angle of deviation formed by a prism change
An object is placed at a distance 24 cm in front of a convex lens
It is observed that during march-past we hear a base drum
A pendulum has a frequency of 4 vibrations per second
Two pendulums C and D are suspended from a wire
Write one advantage of connecting electrical appliances in parallel
What characteristics should a fuse wire have
Which wire in a power circuit is connected to the metallic body
The diagram below shows a dual control switch circuit
The diagram shows a circuit with the key k open
Define Calorimetry
The melting point of naphthalene is 80°C and the room temperature is 30°
104 g of water at 30°C is taken in a calorimeter made of copper of mass 42 g
Draw a neat labeled diagram of an A.C. generator
Define nuclear fission
The diagram below shows a magnetic needle
Define moment of force
Define a kilowatt hour. How is it related to joule
A satellite revolves around a planet in a circular orbit