Question
A sound wave has a frequency of 500 Hz and wavelength of
0.68 m. What is the speed of sound?Solution
Wave speed is given by the formula: v = fλ Substitute f = 500 Hz, λ = 0.68 m: v = 500 × 0.68 = 340 m/s Thus, the speed of sound is 340 m/s.
A light ray enters a glass slab from air at 60° incidence. If refractive index of glass is √3, what is angle of refraction?
The pitch of a sound is primarily determined by which of the following?
In a convex lens, when the object is at infinity, then the position of image is ______.
The energy emitted by the Sun is primarily due to what process?
Which of the following statements is incorrect for a Zener diode in breakdown region?
The material used in the fabrication of a transistor is –
An example of longitudinal waves (in a gas medium) is:
A new technology which provides the ability to create an artificial world and have people interact with it is called –
Specific resistance of a conductor increases with :
The distance- time graph for a body moving at uniform speed is?
Relevant for Exams:
