physics

A transverse wave can be distinguished from a longitudinal wave by?

A. diffraction B. reflection C. refraction D. polarization Correct Answer: Option D D. polarization

6 years ago

The quality of a note depends on its?

A. frequency B. pitch C. overtones D. amplitude Correct Answer: Option C C. overtones

6 years ago

A car traveling at 30m‾¹ overcomes a frictional resistance of 100N while moving. Calculate the power developed by the engine. [1 hp = 0.75 kW]

A. 0.23hp B. 0.40hp C. 4.00hp D. 4.40hp Correct Answer: Option C C. 4.00hp Explanation P = FV = 100×30/1000…

6 years ago

Which of the following types of thermometers can be used to measure a range of temperatures from -50ºC to 50ºC?

i. Clinical ii. Mercury iii. Alcohol-in-glass A. i only B. ii only C. iii only D. i and ii only…

6 years ago

The change of state from solid to liquid occurs?

A. at a constant temperature B. when the temperature is lower than the boiling point C. when the temperature is…

6 years ago

The temperature at which the water vapour in the air saturates the air and begins to condense is known as?

A. dew point B. critical point C. boiling point D. tripple point Correct Answer: Option A A. dew point

6 years ago

Heat transfer by conduction is similar to wave motion because?

A. there is an increase in temperature B. transfer of materials is involved C. charged particles vibrate at right angles…

6 years ago