
check your concepts

Quiz
•
Physics
•
Professional Development
•
Hard
Charchil Badaya
Used 5+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
An unpolarized light of intensity I0 pass through a polarizer, it intensity become I0/2. Now polarizer rotate by 15 degree then intensity of light becomes
3I0/4
zero
I0/4
I0/2
2.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
A tuning fork of frequency 204 hz produce 4 beats with an unknown tuning fork. Now prong of unknown tuning fork is filed then again it produce 4 beats. what is the original frequency of unknown tuning fork?
must be 200 hz
must be 208 hz
200 hz and 208 hz both possible
must be 212 hz
3.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
two moles of an ideal gas with cp/cv=5/3 are mixed with 3 moles of another ideal gas with cp/cv=4/3, the value of cp/cv for the mixture is:
1.45
1.5
1.42
1.47
4.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
what is the heat rise in heat in 5 second?
2500 J
1500 J
3000 J
0 J
5.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
two solid sphere A and B both of m and radius R and 2R respectively are on smooth surface, sphere A is rolling with translation velocity V and angular velocity ω and sphere B is at rest. Now sphere A collide with sphere B ( head on elastic collision),after collision translation and angular velocity of sphere A respectively are
V and ω
V/2, ω/2
0,0
0,ω
6.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
find the current in wire A to B.
0
2 A
1 A
-1 A
7.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
what is the charge went to the earth?
2Q
4Q
0
7Q
8.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
A 420m long rope of mass 5 kg joins two rock climbers. one climber strike the rope and the second one feels the effect 1.4 s later. the tension in the rope is n/14 KN. find the value of N
35
15
55
25
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