Physics 10th Class English Medium Online Test With Answers

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Physics 10th Class English Medium Online Test

Sr. # Questions Answers Choice
1 Astronauts is space need to communicate with each other by radio links because: Sound waves travel very slowly in space. Sound waves travel very fast in speace Sound waves cannot travel in space Sound waves have low frequency in space
2 Which form of energy is sound? Electrical Mechanical Thermal Chemical
3 How does sound travel from its source to your ear? Byc changes in air pressure By vibration in wires or strings By electromagnetic waves By infrared waves
4 Which is an example of a longitudinal wave? Sound wave Light wave Radio wave Water wave
5 Diffraction of wave can be observed clearly only when the size of slit or obstacle is nearly__________ to the wavelength of the wave: Two times Equal Four times None of these
6 It mass of bob o a simple pendulum is doubled, its time period. is doubled become four times remains same none of the above
7 The time period of frequency and time period is equal to: v 1 0 λ
8 Thye Water waves obey the laws of Reflection Refraction Diffraction All of these
9 Time period is reciprocal of: Frequency Cycle Wavelength Amplitude
10 Shock absorbers in automobiles are one practical application of: SHM Random motion Damped motion None of these
11 The oscillations of a system in the presence of _____________ force are called amp oscillations: Resistive force Attractive force Both of these None of these
12 The motion in which the friction reduces the mechanical energy of the system as times passes and the amplitude of motion reduces is called: SHM Randum motion Damped motion None of these
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