(A) Negative ions
(B) Protons
(C) Electrons
(D) Positive ions
The direction of induced emf in a circuit is in accordance with conservation of?
(A) Charge
(B) Momentum
(C) Energy
(D) Mass
The combined resistance of two electrical resistors connected in series is 8 Ω. Their combined resistance in a parallel arrangement will be?
(A) 2Ω
(B) 4Ω
(C) 8Ω
(D) 12Ω
System International unit of electric potential is?
(A) Ampere
(B) Electron volt
(C) Volt
(D) Joule
A positive electric charge?
(A) Attracts other neutral charge
(B) Attracts other positive charge
(C) Repels other positive charge
(D) Repels other neutral charge
During refraction of light the quality of ___ is not changed.
(A) Its frequency
(B) Its wavelength
(C) Its speed
(D) Its direction
For a normal person audible frequency range for sound wave lies between?
(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