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Chapter 19 - Dawn of ModernMhysics - 1
1.
An accelerated frame is a ___________ frame of reference
a) Inertial
b) Non-inertial
c) Apacial
2.
The special theory of relativity is based upon __________ postulates.
a) Four
b) Three
c) Two
3.
The speed of light in free space is the ____________ constant.
a) Regional
b) Universal
c) Power
4.
According to ___________ of relativity time is not absolute quantity.
a) Old theory
b) Special theory
c) New theory
5.
An infinite mass would require an infinite______________ to accelerate it.
a) Energy
b) Force
c) Power
6.
The mass of an object will get doubled at the speed of__________.
a) 2.6x10^6m/s
b) 2.6x10^4m/s
c) 2.6x10^2m/s
7.
A black body has the property to____________ all the radiation entering it.
a) Exude
b) Absorb
c) Reflect
8.
Absorption power of a perfect black body is__________.
a) 3
b) 2
c) 1
9.
The maximum energy of photoelectrons depends on the particular metal surface and____________ of the incident light.
a) Clour
b) Speed
c) Frequency
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