10th Class Physics MCQS Chapter 1

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Diffraction of wave can be observed clearly only when the size of slit or obstacle is nearly__________ to the wavelength of the wave:
Equal
Two times
None of these
Four times

The water waves after striking the hurdle will:
Reflect
Diffract
All a , b, c
Refract

It mass of bob o a simple pendulum is doubled, its time period.
become four times
remains same
is doubled
none of the above

Shock absorbers in automobiles are one practical application of:
None of these
Damped motion
SHM
Random motion

Formula for time period of spring mass system is represented by:
T = 1/2??m/k
T = 2? ?k/m
T = 2??m/k
T = 1/2??k/m

In CD presence of pits is indicated by:
0
2
3
1

The relation between v,f and? of a wave is:
f? = v
vf=?
v=?/f
v? =f

At extreme position potential energy of the pendulum is
zero
a and b
Maximum
Minimum

Mathematical formula of spring constant is:
F/x
F/m
F/t
X/F

To get a design on the computer screen by moving a pointer with the help of mouse is called:
graphic designing
telecommunication
word processing
data managing

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