physics

When an elastic material is stretched by a force, the energy stored in it is?

A. kinetic B. potential C. thermal D. electrical Correct Answer: Option B B. potential

6 years ago

A ball falling through a viscous liquid is acted upon by?

A. upthrust only B. upthrust and the ball's weight C. the ball's weight and viscous force D. upthrust, the ball's…

6 years ago

Which of the following radiations constitutes a stream of electrons?

A. Gamma rays B. X-rays C. Cathode rays D. Radio waves Correct Answer: Option C C. Cathode rays

6 years ago

Which of the following statements about diode is correct?

A. reverse bias diodes have low resistance B. forward bias diodes have high resistance C. forward bias diodes produce high…

6 years ago

In a nuclear fission process, the mass defect was 1.2 x 10^‾5 kg. Calculate the energy released. [speed of the light in vacuum = c = 3.0 x 10^8ms‾¹]

A. 1.08 x 10^11J B. 5.20 x 10^11J C. 1.08 x 10^12J D. 2.50 x 10^13J Correct Answer: Option C…

6 years ago

When current flows through a moving-coil galvanometer, the force exerted on the pointer depends on the? Which of the statement(s) above is/are correct?

i. strength of the current. ii. magnetic field strength. iii. length of the coil. A. i only B. ii only…

6 years ago

The angle which the direction of the earth magnetic field makes with the horizontal at a palace is known as?

A. angle of contact B. angle of dip C. angle of declination D. magnetic meridian Correct Answer: Option B B.…

6 years ago