Bsc physics full book mcqs in PDF form . BSc part 2 Full book mcqs. Electricity and magnetisem mcqs. MCQS of thermodynamics etc

## Bsc Physics Part 2 Full Book Mcqs

1: the Hamiltonian can be constructed from the lagrangian using the formula

a) H = Ṗiqi-L

b) H = Pq-L

c) H = ∂L∂φi

d) 1/L

2: The general expression for conjugate momentum is Pi = ∂L/qj given lagrangian is L = ½ mx.2 –V(x) what is x. conjugate momentum

a) ½ mx.2

b) mx

c) mx.

d) –(∂V/∂X)

3: The usual expression for the conserved angular momentum in a central force problem is

a) L = mr2θ.

b) L = m/r2θ.

c) L= J/K

d) l = 1/2mr2θ.

4: If ∂H∂t=0 then

a) the Hamiltonian is not necessarily a constant of motion, but it is necessarily the

total energy of the system.

b) Hamiltonian is a constant of motion, but it is not necessarily the total energy of the

system.

c) None of these

5: Lagrangian equation is ……. For any generalized coordinates

a) Same

b) Different

6: newton’s law do not holds good for particles

a) Move with velocity comparable to velocity of light

b) Moving with high velocity

c) At rest

d) None of these

7: A central force

a) Can produced torque

b) Can never produce torque

c) Sometimes yes some time

d) Has no relation with torque

8: the torque depends upon

a) Magnitude of force

b) Magnitude of displacement

c) Magnitude of force and displacement

d) None of these

9: Hamilton’s principle is an example of Hamiltonian

a) Yes

b) No

10: the path which is cycloid in known as

a) Catenary

b) Brachistochrone

c) Cyclone

d) Helical

11: units of angular momentum is

a) Kg m/sec

b) Kg m2/sec2

c) Kg m/sec2

d) Kg m2/sec

12: the work done due to friction is always

a) Positive

b) Negative

c) Both a & b

d) 0

13: If f (c) <0

a) The central force is positive or negative

b) The central force is negative or attractive

c) The central force is positive or repulsive

d) The central force is negative or repulsive

14: due to the presence of central force Arial velocity is

a) Zero

b) Constant

c) Not constant

d) None of these

15: the curve which gives shortest distance between two points on a given surface is known as

a) Brachistochrone

b) Geodesics of surface

c) Catenary

d) None of these