physics

Which of the following substance is not a good conductor of electricity?

A. Human body B. Glass C. Aluminium D. Earth E. Copper Correct Answer: Option B - Glass

5 years ago

Water in an open container boils at a lower temperature when heated at the top of a mountain than at sea-level because at the top of a mountain the?

A. relative humidity is higher than at sea-level B. rays of the sun add more heat to the water C.…

5 years ago

Which of the following statements is/are not correct?

A. Evaporation takes place only at the surface of the liquid B. Boiling takes place throughout the volume of the…

5 years ago

Which of the following surfaces will radiate heat energy best?

A. Red B. White C. Black D. Yellow E. Blue Correct Answer: Option C - Black

5 years ago

An engine raises 1000kg of water through a height of 60m in 20s. What is the power of the engine? (Take g = 10ms−²).

A. 120,000 W B. 30,000 W C. 333 W D. 300 W E. 30 W Correct Answer: Option B -…

5 years ago

Which of the following is a derived unit ______?

A. Metre B. Coulomb C. Kilogram D. Second E. Ampere Correct Answer: Option B - Coulomb

5 years ago

The motion of the prongs of the sounding tuning fork is?

A. random B. translational C. rotational D. vibratory E. vibratory and rotational Correct Answer: Option D - vibratory

5 years ago

A piece of cork floating on water is acted upon by the forces of?

A. Weight and viscosity B. weight and upthrust C. upthrust and viscosity D. weight only E. upthrust only Correct Answer:…

5 years ago