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Recent questions tagged the special theory of relativity
+2
votes
1
answer
The rest distance between Patna and Delhi is 1000 km. A nonstop train travels at 360 km/h.
asked
Apr 6, 2019
in
Class 12
by
kratos
the special theory of relativity
class-12
time
speed & distance
+3
votes
1
answer
What is the kinetic energy of an electron in electronvolts with mass equal to double its rest mass ?
asked
Apr 5, 2019
in
Class 12
by
kratos
the special theory of relativity
class-12
+1
vote
1
answer
A man with a wristwatch on his hand falls from the top of a tower. Does the watch give correct time during the free fall? Explain.
asked
Apr 1, 2019
in
Class 12
by
kratos
the special theory of relativity
waves
motion in a straight line
neet
oscillations
class-11
class-12
+2
votes
1
answer
An experimenter measures the length of a rod. Initially the experimenter and the rod are at rest with respect to the lab.
asked
Mar 27, 2019
in
Class 12
by
kratos
the special theory of relativity
class-12
+2
votes
1
answer
A rod of rest length L moves at a relativistic speed. Let L = L/y.
asked
Mar 20, 2019
in
Class 12
by
kratos
the special theory of relativity
class-12
+3
votes
1
answer
The magnitude of linear momentum of a particle moving at a relativistic speed v is proportional to (a) v
asked
Mar 2, 2019
in
Class 12
by
kratos
the special theory of relativity
class-12
+1
vote
1
answer
The guru of a yogi lives in a Himalyan cave, 1000 km away from the house of the yogi.
asked
Feb 25, 2019
in
Class 12
by
kratos
the special theory of relativity
class-12
+3
votes
1
answer
A person travels by a car at a speed of 180 km/h. It takes exactly 10 hours by his wristwatch to go from the station A to the station B.
asked
Feb 21, 2019
in
Class 12
by
kratos
the special theory of relativity
class-12
+3
votes
1
answer
An object is moving in a circle at constant speed v. The magnitude of rate of change of momentum of the object
asked
Feb 17, 2019
in
JEE
by
kratos
measurement
the special theory of relativity
class-11
jee
jee mains
class-12
units and measurements
+1
vote
1
answer
A train S1, moving with a uniform velocity of 108 km/h, approaches another train S2 standing on a platform.
asked
Feb 4, 2019
in
JEE
by
kratos
the special theory of relativity
class-8
jee
class-12
time and speed
jee mains
distance
doppler effect
jee advanced 2019
+1
vote
1
answer
By what fraction does the mass of a boy increase when he starts running at a speed of 12 km/h ?
asked
Feb 3, 2019
in
Class 12
by
kratos
the special theory of relativity
class-12
+2
votes
1
answer
A person of mass m is standing on a structure made up of pulley, strings and Platform as shown in figure.
asked
Jan 24, 2019
in
JEE
by
kratos
the special theory of relativity
dynamics
class-8
jee main 2020
jee
time and speed
jee mains
distance
class-12
+2
votes
1
answer
If a constant force acts on a particle, its acceleration will (a) remain constant
asked
Jan 15, 2019
in
Class 12
by
kratos
the special theory of relativity
class-12
+2
votes
1
answer
The energy from the sun reaches just outside the earth'* atmosphere at a rate of 1400 W/m^2.
asked
Jan 3, 2019
in
Class 12
by
kratos
the special theory of relativity
class-12
+2
votes
1
answer
Mark the correct statements: (a) Equations of special relativity are not applicable for small speeds.
asked
Dec 29, 2018
in
Class 12
by
kratos
the special theory of relativity
class-12
+3
votes
1
answer
Through what potential difference should an electron be accelerated to give it a speed of (a) 0.6c, (b) 0.9c and (c) 0.99c ?
asked
Dec 23, 2018
in
Class 12
by
kratos
the special theory of relativity
class-12
+3
votes
1
answer
An electron and a positron moving at small speeds collide and annihilate each other. Find the energy of the resulting gamma photon.
asked
Dec 11, 2018
in
Physics
by
kratos
the special theory of relativity
neet
isc
modern physics
aiims
jee
dual nature of radiation and matter
icse
jee mains
class-12
atoms
nuclear physics
nuclei
+1
vote
1
answer
A person travels on a spaceship moving at a speed of 5c/13. (a) Find the time interval calculated by him between the consecutive birthday
asked
Nov 29, 2018
in
Class 12
by
kratos
the special theory of relativity
class-12
+2
votes
1
answer
Which of the following quantities related to an electron has a finite upper limit?
asked
Nov 28, 2018
in
Class 12
by
kratos
the special theory of relativity
class-12
+3
votes
1
answer
Find the speed at which the kinetic energy of a particle will differ by 1% from its nonrelativistic value 1/2m0v^2.
asked
Nov 25, 2018
in
Class 12
by
kratos
the special theory of relativity
class-12
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