check your concepts

check your concepts

Professional Development

8 Qs

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Assessment

Quiz

Physics

Professional Development

Hard

Created by

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

Media Image

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

Media Image

find the current in wire A to B.

0

2 A

1 A

-1 A

7.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

Media Image

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