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Free tnpsc model questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. The positive charge carriers in semiconductor are
(a)
holes
(b)
positrons
(c)
protons
(d)
positive ions
2. The most abundant metal in earth crust is
(a)
aluminium
(b)
calcium
(c)
iron
(d)
magnesium
3. Which of the following is a vector quantity?
(a)
work
(b)
energy
(c)
pressure
(d)
momentum
4. Which one of the following groups have quantities that do not have the same direction?
(a)
pressure, stress
(b)
work, energy
(c)
velocity, speed
(d)
force, impulse
5. The excess of pressure inside a drop or bubble is
(a)
inversely proportional to its surface tension
(b)
inversely proportional to its radius
(c)
directly proportional to its radius
(d)
directly proportional to its mass
6. Newton’s first law is also called as
(a)
law of momentum
(b)
law of energy
(c)
law of inertia
(d)
law of moments
7. Rutherford’s scattering experiment related to the size of the
(a)
atom
(b)
electron
(c)
neutron
(d)
nucleus
8. The process in which no heat enters or leaves the system is termed as
(a)
adiabatic
(b)
isochoric
(c)
isothermal
(d)
isobaric
9. A pure semiconductor has
(a)
a finite resistance which decreases with temperature
(b)
a finite resistance which increases with temperature
(c)
a finite resistance which does not depend upon temperature
(d)
an finite resistance at 0°C
10. Natural radioactivity was discovered by
(a)
becquerel
(b)
curic
(c)
rutherford
(d)
schmidt
