Previous paper class 10th(Physics)

Q.1. Encircle the correct option.
1) Wave transfer
a) Energy
b) Frequency
c) Wavelength
d) Velocity
2) Which of the following characteristics of a wave is independent of the others?
a) Speed
b) Frequency
c) Amplitude
d) Wavelength
3) Which of the following is method of energy transfer?
a) Conduction
b) Convection
c) Radiation
d) All of these
4) In a vacuum all electromagnetic waves have the same
a) Speed
b) Frequency
c) Amplitude
d) Wavelength
5) Intensity level of rustling of leaves is
a) 40
b) 03
c) 03
d) 03
6) Which is an example of a longitudinal wave?
a) Sound wave
b) Light wave
c) Radio wave
d) Water wave
7) The loudness of a sound is most closely related to
a) Frequency
b) Period
c) Wavelength
d) Amplitude
8) Which form of energy is sound?
a) Electrical
b) Mechanical