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Free tnpsc model questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. _____ is used as sun glasses.
(a)
Polaroids
(b)
Pile of plates
(c)
Nicol prism
(d)
None of the above
2. Line spectrum is of how many types?
(a)
1
(b)
2
(c)
3
(d)
4
3. The energy of electromagnetic waves in due to _____ energy of the oscillating charge.
(a)
rotational
(b)
vibrational
(c)
potential
(d)
kinetic
4. Light waves consists of small packets of energy called
(a)
protons
(b)
positrons
(c)
photons
(d)
corpuscles
5. Maxwell showed that light possess _____ energy.
(a)
magnetic
(b)
electrical
(c)
electromagnetic
(d)
mechanical
6. _____ is used to preserve food items.
(a)
Radiowaves
(b)
uv-rays
(c)
gamma rays
(d)
X-rays
7. The distance between any two consecutive bright or dark bands is called
(a)
amplitude
(b)
bandwidth
(c)
path difference
(d)
wavelength
8. In a Nicol Prism, the ordinary ray
(a)
gets reflected
(b)
is not produced
(c)
suffers total internal reflection
(d)
is absorbed by the prism
9. Electromagnetic waves are produced by
(a)
accelerated charges
(b)
molecules of hot bodies
(c)
electronic device
(d)
atoms and molecules in an electrical discharge
10. The instrument to determine the optical rotation produced by a substance is
(a)
pyroheliometer
(b)
polarimeter
(c)
spectrometer
(d)
polometer
