GK - Physics
31.
Which color has the highest energy?
Answer
Violet waves have the most energy of the visible spectrum.
Answer :
Option AExplanation :
Violet waves have the most energy of the visible spectrum.
32.
A magnetic needle is kept in non uniform magnetic field. It experiences
Answer
A magnetic needle is a magnetic dipole. In a non uniform Magnetic field Force on each of the poles will be different in both magnitude and direction. Due to difference in Magnitude the dipole experiences a Force and Due to difference in Direction the dipole experiences a Torque.
Answer :
Option AExplanation :
A magnetic needle is a magnetic dipole. In a non uniform Magnetic field Force on each of the poles will be different in both magnitude and direction. Due to difference in Magnitude the dipole experiences a Force and Due to difference in Direction the dipole experiences a Torque.
33.
RADAR is used for
Answer
Radar is a detection system that uses radio waves to determine the range, angle, or velocity of objects
Answer :
Option DExplanation :
Radar is a detection system that uses radio waves to determine the range, angle, or velocity of objects
34.
A ball is thrown vertically upwards. Assuming the air resistance to be constant and considerable:
Answer
Answer :
Option A35.
It takes much longer to cook food in the hills than in the plains, because
Answer
Answer :
Option AJump to page number :