A concave lens of focal length f forms an image which is 1/3 times the size
A concave lens of focal length f forms an image which is 1/3 times the size of the object. Then,…
8 years ago
Physics
The velocity of image when object and mirror both are moving towards each other
The velocity of image when object and mirror both are moving towards each other with velocities 4 ms⁻¹ and 5…
8 years ago
A nucleus disintegrates into two nuclear parts which have their velocities in the ratio
A nucleus disintegrates into two nuclear parts which have their velocities in the ratio 2 : 1. The ratio of…
8 years ago
The half-life of a radioactive substance is 30 min. The time (in minutes) taken
The half-life of a radioactive substance is 30 min. The time (in minutes) taken between 40% decay and 85% decay…
8 years ago
Two bodies A and B having temperature 327° C and 427° C are radiating heat
Two bodies A and B having temperature 327° C and 427° C are radiating heat to the surroundings. The surrounding…
8 years ago
Minimum and maximum values of Poisson’s ratio for a metal lies between
Minimum and maximum values of Poisson's ratio for a metal lies between Options (a) (-∞ to +∞) (b) 0 to…
8 years ago
If angular momentum of a body is increased by 200% its kinetic energy will increase
If angular momentum of a body is increased by 200% its kinetic energy will increase by Options (a) 400% (b)…
8 years ago
The acceleration due to gravity at a place is π² m/sec². Then the time period
The acceleration due to gravity at a place is π² m/sec². Then the time period of a simple pendulum of…
8 years ago
A meter stick of mass 400 g is pivoted at one end and displaced through an angle 60°.
A meter stick of mass 400 g is pivoted at one end and displaced through an angle 60°. The increase…
8 years ago
Two rigid bodies A and B rotate with rotational kinetic energies Eᴀ and Eʙ
Two rigid bodies A and B rotate with rotational kinetic energies Eᴀ and Eʙ respectively. The moments of inertia of…
8 years ago