Physics MCQs 2
MCQ's with answers from Physics for FSC pre engineering and pre medical for Board of Intermediate and Secondary education. Also For Entry Test Preparation for UET, NUST, PIEAS, GIKI, AIR, FAST, WAH University, UHS, other engineering Universities and Medical Colleges.
1. for an ideal gas force of attraction between molecules is
a. very large
b. infinite
c. very small
d. zero
2. if mean square velocity of gas molecules is doubled than pressure of gas
a. Double
b. remains same
c. very small
d. zero
3. Boltzman’s constant is defined as
a. Na/R
b. R/Na
c. NaR
d. 1/RNa
4. Polyatomic real gas molecules have
a. translational K.E
b. vibrational K.E
c. rotational K.E
d. all
5. pressure of a gas can be written as
a. 1/3 p<v>
b. 1/3p<v^2>
c. 1/3 <v^2>
d. 1/3p^2<v>
6. Internal energy of ideal gas depends upon
a. temperature
b. path followed
c. volume
d. all
7.First law of thermodynamics is restatement of law of conservation of
a. a. energy
v. angular momentum
c. meomentum
d all
8. Entropy of all real processes in which heat transfer takes place:
a. increases
b. remains same
c. decreases
d. may increase of decrease
9. Which of the given statements contradicts the kinetic theory of gasses:
a. molecules have very small size
b. molecules collide inelastically
c. molecules are far aparted
d. none
10. a refrigerator transfer heat form:
a. higher temperature to low temperature
b. low temperature to high temperature
c. convert electric energy into heat
d. none
Answers:
1. .zero
2. four times
3 R/Na
4.all
5.b
6.temperature
7.energy
8.increases
9.molecules collide inelastically
10.low temperature to high temperature
0 comments:
Confused? Feel Free To Ask
Your feedback is always appreciated. We will try to reply to your queries as soon as time allows.