MCQS of Physics for NTS
What will be the ratio of the distance moved by a freely falling body from rest in 4th and 5th seconds of journey?
7:09
4:05
1:01
16:25
The de broglie wave corresponding to a particle of mass m and velocity v has a wavelength associated with it
m/hv
hm v
h/mv
mh/v
At a certain instant a stationary transverse wave is found to have maximum kinetic energy the appearance of string of that instant is:
Sinusoidal shape with amplitude A/2
Sinusoidal shape with amplitude A
Sinusoidal shape with amplitude A/3
Straight line
To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined
Perpendicular to each other
At angle 60°
Parallel
Antiparallel
The smooth or steady stream-line flow is know as
None of the above
Turbulent flow
Laminar flow
Both a and b
The excess (equal in number) of electrons that must be placed on each of two small spheres spaced 3 cm apart. with force of repulsion between the spheres to be 10-19 N is
625
225
1250
25
Which quantity is increased in step-down transformer?
Frequency
Power
Voltage
Current
The henry is the unit for
Inductance
Magnetic field
Magnetic flux
Resistance
Who explained the origin of the Fraunhofer lines?
Snell
Fraunhoffer
Fresnel
Kirchhoff
A voltmeter has resistance of 2000 ohms and it can measure up to 2V. If we want to increase its range to 10V then required resistance in series will be
6000 ?
4000 ?
2000 ?
8000 ?
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