(A) 10 Hz to 10 Khz
(B) 20 Hz to 20 Khz
(C) 25 Hz to 25 Khz
(D) 30 Hz to 30 Khz
Device which can be used to produce both Transverse and Longitudinal waves is called?
(A) Ripple tank
(B) A string
(C) Helical spring
(D) Tuning fork
Characteristic of a wave which is independent of the others is called?
(A) Frequency
(B) Aplitude
(C) Wavelength
(D) Speed
What is the equation of Joule’s law?
(A) w=I2Rt
(B) w=IR2t
(C) w=IRt2
(D) w=IR
What is the unit of capacitance?
(A) Farad
(B) Volt
(C) Watt
(D) Ampere
Sound is form of which type of energy?
(A) Mechanical
(B) Electrical
(C) Thermal
(D) Chemical
A doctor counts 72 heartbeats in 1 minute. Its time period is?
(A) 0.83 second
(B) 1.2 second
(C) 60 second
(D) 72 second
Example of simple harmonic motion?
(A) The motion of a simple pendulum
(B) The motion of earth on its axis
(C) The motion of a ceiling fan
(D) Bouncing ball on the floor