Skip to main content

Basic MCQs on thermodynamics | class 11 physics | advguruji/Physics Advocate

 Q1.

Melting and boiling are examples of -

A. adiabatic process

B. isobaric process

C. isothermal process

D. cyclic process


Q2.

For an isothermal process the change in internal energy is -

A. positive

B. negative

C. zero

D. infinite


Q3.

Specific heat capacity of any gas for isothermal process is -

A. zero

B. infinite

C. 1

D. log10⁵


Q4.

For a cyclic process the change in internal energy is -

A. positive

B. negative

C. Zero

D. infinite


Q5.

Which is not an extensive variable ?

A. Pressure

B. mass

C. volume

D. internal energy


Q6.

First law of thermodynamics is based on -

A. Law of conservation of momentum

B. Law of conservation of angular momentum

C. Law of conservation of mass

D. None of these


Q7.

The slope of pressure volume curve in an adiabatic process is -

A. Equal to the slope of isothermal process

B. 'γ' times the slope of isothermal process

C. "1/γ" times the slope of isothermal process

D. Negative to the slope of isothermal process


Q8.

An ideal gas of volume 0.0015 m³ and at pressure 1 × 10⁵ Pa is supplied with 70 J energy. The volume increases to 0.0017 m³ and the pressure remains constant. The internal energy of the gas is -

A. Increased by 90 J

B. Increased by 70 J

C. Increased by 50 J

D. Decreased by 50 J

Comment down your thoughts :-)

-------------------------------------------------------------------

ANSWERS

ANS1. C

ANS2. C          ANS3. B

ANS4. C

ANS5. A          ANS6. D

ANS7. B          ANS8. C

Awesome MCQs on satellites

click here

by  www.advguruji.blogspot.com

Labels:

Comments

Post a Comment

Popular posts from this blog

Wind Energy | wind generators | advantages and disadvantages of Wind Energy by - advguruji

Moving air is called wind. Wind has energy. The energy possessed by wind is due to its high speed. So we can say the wind possesses kinetic energy . It is the kinetic energy of wind which is utilized for doing work. Solar energy or sun's energy is responsible for the blowing of wind, due to the uneven heating of earth by the sun in different regions. Now let's discuss about what is a wind mill. Wind mill The energy of wind is harnessed by using a windmill. A windmill consists of big sized table fan like blades which are fixed over the top of a tall pole in such a way that they are free to rotate when the fast moving wind strikes on the blades of the windmill. It makes the blades rotate continuously. The rotatory motion of the windmill is then used to do Mechanical work through a shaft connected to the rotating blades. The traditional use of wind energy has now been modified by the improvement in technology to generate electricity through wind powered generators. Wind Generator
37 comments
Read more

Age problems (for practice) | class 10 mathematics | advguruji | Physics Advocate

Linear Equations Q1. Ten years ago, father was twelve times as old as his son and ten years hence, he will be twice as old as his son will be. Find their present ages. Ans. Present age of father = 34 years          Present age of son = 12 years Q2. Three years ago, Priya's mother was six times older than her. Four years from now, Priya's mother will be one year older than thrice her age. Find the present age of Priya and her mother. Ans.  Present age of Priya = 8 years       Present age of mother = 33 years Q3. Five years ago, Rakesh was five times younger than his mother. Ten years from now, his age will be half of his mother's age. Find the present age of Rakesh and his mother. Ans. Present age of Rakesh = 10 years      Present age of mother = 30 years Q4.           (equation in one variable) A  is elder to  B  by two years. A's father  F  is twice as old as  A .  B  is twice as old as his sister  S . If the ages of the father and sister differ by 40 years,  find th
1 comment
Read more

Multiple Choice Questions (MCQs) on fluid mechanics class 11 : Physics advocate/advguruji

Best of Luck Q1. Hairs of shaving brush cling together when it is removed from water due to- (a) force of attraction between hair (b) surface tension (c) viscosity of water (d) characteristic property of hair Q2. Coatings used on raincoat are waterproof because they - (a) increases angle of contact (b) decreases angle of contact (c) does not alters angle of contact (d) forms a smooth surface Q3. A body measures 5 N in air and 2 N when put in water. The buoyant force is- (a) 7 N (b) 9 N (c) 3 N (d) None of these Q4. A hole is made at the bottom of the tank filled with water (density = 1000 kg/m³). If the total pressure at the bottom of the tank is three atmospheres (1 atmosphere = 10⁵ N/m²), then the velocity of efflux is nearest to- (a) 20 m/s (b) 10√2 m/s (c) 20√2 m/s (d) √500 m/s Q5. When the temperature is increased the angle of contact of a liquid? (a) increases (b) decreases (c) remains the same (d) first increases and then decreases Q6. The surface tension of a soap solution is 2
1 comment
Read more