physics

Thunder is usually heard some seconds after lightning is observed because?

A. the human eye is more sensitive to light than the ear to sound B. sound and light travel in…

5 years ago

Calculate the distance from the open end to the next position where resonance occurs.

If the position of resonance in a resonance tube is 16.50cm from open end of the tube, calculate the distance…

5 years ago

ln order to obtain a sound note of a high pitch from a wire stretched by a constant tension, the wire must be?

A. short and thick B. short and thin C. long and thick D. long and thin Correct Answer: Option B…

5 years ago

The amplitude of a wave is the _______?

A. distance between two successive troughs of the wave B. separation of two adjacent particles vibrating in phase C. maximum…

5 years ago

Which of the following statements is not correct about long sight?

A. A Iong-sighted person can see distant objects clearly B. light from a nearby object is focused behind the retina.…

5 years ago

The refractive index of glass for yellow light is greater than that for red light because yellow light?

A. has a greater amplitude than red light B. is more intense than red light C. travels more slowly than…

5 years ago

The air column in a resonance tube is set into resonance by a vibrating tuning fork. The resultant waves in the air column will be?

A. mechanical and transverse B. progressive and longitudinal C. stationary and transverse D. stationary and longitudinal. Correct Answer: Option D…

5 years ago