physics

A listener can detect the instrument from which a note is being sounded because different instruments produce the same note with a different.

A. frequencies B. pitches C. loudness D. intensities E. overtones Correct Answer: Option E - overtones

5 years ago

An alternating voltage with a frequency of 50Hz has a period of?

A. 0.02s B. 0.05s C. 0.20s D. 0.50 s E. 50.00s Correct Answer: Option A - 0.02s

5 years ago

The period of a wave is 0.02 second. Calculate its wavelength if its speed is 330 ms-1.

A. 6.6m B. 5.0m C. 4.0m D. 3.3m E. 2.0m Correct Answer: Option A - 6.6m

5 years ago

Which of the following wave characteristics can be used to distinguish a transverse wave from a longitudinal wave?

A. Reflection B. Refraction C. Diffraction D. Polarization E. Interference Correct Answer: Option D - Polarization

5 years ago

Which of the following media allow(s) the transmission of sound waves?

I. Air II. Liquid III. Solid. A. I only B. II only C. III only D. I and II only…

5 years ago

Sixty complete waves pass a particular point in 4s. lf the distance between three successive troughs of the waves is 15m. Calculate the speed of the waves?

A. 300.0ms-1 B. 225.0ms-1 C. 112.5ms-1 D. 75.0ms-1 E. 16.0ms-1 Correct Answer: Option C - 112.5ms-1

5 years ago

What is the minimum frequency which will resonate with the wire?

A wire is stretched between two points, 1m apart. If the speed of the wave generated on plucking the wire…

5 years ago

An object is placed on the principal axis at the centre of curvature of a concave mirror. The image of the object formed by the mirror is?

A. real, inverted and magnified B. at the principal focus C. real and diminished D. erect and virtual E. at…

5 years ago

Which of the following is not self-luminous?

A. Incandescent electric bulb B. Incandescent fluorescent tube C. Lighted candle D. The moon E. The sun Correct Answer: Option…

5 years ago