CUET PG PYQs for Mechanics and wave Motion with Solutions: Practice CUET PG Previous Year Questions

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Mechanics and wave Motion is an important topic in the Geophysics section in CUET PG exam. Practising this topic will increase your score overall and make your conceptual grip on CUET PG exam stronger.

This article gives you a full set of CUET PG PYQs for Mechanics and wave Motion with explanations for effective preparation. Practice of CUET PG Geophysics PYQs including Mechanics and wave Motion questions regularly will improve accuracy, speed, and confidence in the CUET PG 2026 exam.

CUET PG PYQs for Mechanics and wave Motion with Solutions

1.
The image of the point (1 3 4) in the plane 2x − y + z + 3 = 0 is
- (3 -2 1)
- (-3 5 2)
- (3 2 5)
- (5 1 6)
View Solution

2.
LIST I (Name of the surface) LIST II
A. Ellipsoid I. x²/a² + y²/b² + z²/c² = 1
B. Hyperboloid of one sheet II. x²/a² - y²/b² - z²/c² = 1
C. Hyperboloid of two sheets III. -x²/a² + y²/b² + z²/c² = 1
D. Central conicoid IV. x²/a² + y²/b² + z = 1
Choose the correct answer from the options given below:

	LIST I (Name of the surface)	LIST II
A.	Ellipsoid	I. x²/a² + y²/b² + z²/c² = 1
B.	Hyperboloid of one sheet	II. x²/a² - y²/b² - z²/c² = 1
C.	Hyperboloid of two sheets	III. -x²/a² + y²/b² + z²/c² = 1
D.	Central conicoid	IV. x²/a² + y²/b² + z = 1

(A) - (I), (B) - (II), (C) - (III), (D) - (IV)
(A) - (I), (B) - (III), (C) - (II), (D) - (IV)
(A) - (IV), (B) - (II), (C) - (I), (D) - (III)
(A) - (IV), (B) - (III), (C) - (II), (D) - (I)

View Solution

3.
Match List I with List II:
List I List II
(A) The linear momentum of the system remains constant (IV) The net external force acting on a system of particles is zero
(B) The angular momentum of the system remains constant (III) The external torque acting on a system of particles is zero
(C) Inertial frame (I) The frames relative to which an unaccelerated body appears unaccelerated
(D) Non-inertial frame (II) The frames relative to which an unaccelerated body appears accelerated
Choose the correct answer from the options given below:

List I	List II
(A) The linear momentum of the system remains constant	(IV) The net external force acting on a system of particles is zero
(B) The angular momentum of the system remains constant	(III) The external torque acting on a system of particles is zero
(C) Inertial frame	(I) The frames relative to which an unaccelerated body appears unaccelerated
(D) Non-inertial frame	(II) The frames relative to which an unaccelerated body appears accelerated

A-III, B-IV, C-I, D-II
A-IV, B-III, C-I, D-II
A-IV, B-III, C-II, D-I
A-III, B-I, C-IV, D-II

View Solution

4.
The position vector of a point in the frame S moving with constant velocity 10 cm/s along the X-axis is given by (11,9.8) cm. The position with respect to S if the two frames were coincident only 1/2 second earlier.
- (11, 9.8)
- (16, 9.8)
- (16, 13.10)
- (11, 13.10)
View Solution
5.
Given below are two statements
Statement I Every homogeneous equation of second degree in x y and z represents a cone whose vertex is at the origin
Statement II If two equations representing the guiding curve are such that the one equation is of the first degree then the required cone with vertex at the origin is obtained by making the other equation homogeneous with the help of the first equation
Choose the most appropriate answer from the options given below
- Both Statement I and Statement II are correct
- Both Statement I and Statement II are incorrect
- Statement I is correct but Statement II is incorrect
- Statement I is incorrect but Statement II is correct
View Solution
6.
If the radius of Earth becomes half of its present value, with its mass remaining the same, the duration of one day will become:
- 8h
- 6h
- 12h
- 18h
View Solution
7.
The shortest distance between the lines
$$ \frac{x-1}{2} = \frac{y-2}{3} = \frac{z-3}{4} $$ and
$$ \frac{x-2}{3} = \frac{y-4}{4} = \frac{z-5}{5} $$ is:
- 1
- $\frac{1}{\sqrt{3}}$
- $\frac{1}{\sqrt{6}}$
- $\frac{1}{2\sqrt{3}}$
View Solution
8.
In order to introduce a phase difference of $\pi/2$ in a Quarter wave plate, the thickness of the crystal should have a value of... (Given: wavelength = $5893 \times 10^{-10} \, \text{m}$, refractive index for O-ray is $1.65836$ and refractive index for E-ray is $1.48641$)
- $8.57 \times 10^{-4} \, \text{mm}$
- $8.57 \times 10^{-4} \, \text{cm}$
- $8.57 \times 10^{-4} \, \text{m}$
- $8.57 \times 10^{-4} \, \text{nm}$
View Solution
9.
The Hamiltonian’s equation of motion is
- $\dot{q}_j = \frac{\partial H}{\partial p_j}, \; \dot{p}_j = -\frac{\partial H}{\partial q_j}$
- $\dot{q}_j = \frac{\partial H}{\partial q_j}, \; \dot{p}_j = -\frac{\partial H}{\partial p_j}$
- $\dot{p}_j = \frac{\partial H}{\partial q_j}, \; \dot{q}_j = -\frac{\partial H}{\partial p_j}$
- $\dot{p}_j = -\frac{\partial H}{\partial p_j}, \; \dot{q}_j = \frac{\partial H}{\partial q_j}$
View Solution
10.
Statement (I): If a given component of the total applied force vanishes, the corresponding component of the linear momentum is not conserved.
Statement (II): If the component of applied torque along the axis of rotation vanishes, then the component of total angular momentum along the axis of rotation is conserved.
Choose the most appropriate answer:
- Both Statement I and Statement II are correct
- Both Statement I and Statement II are incorrect
- Statement I is correct but Statement II is incorrect
- Statement I is incorrect but Statement II is correct
View Solution

11.
LIST I LIST II
A. Intrinsic semiconductor I. Used as a rectifier circuit
B. N-Type Semiconductor II. Pure form of Semiconductor
C. P-Type Semiconductor III. Doping of pentavalent impurity in semiconductor
D. P-N Junction diode IV. Doping of trivalent impurity in semiconductor
Choose the correct answer from the options given below:

	LIST I	LIST II
A.	Intrinsic semiconductor	I. Used as a rectifier circuit
B.	N-Type Semiconductor	II. Pure form of Semiconductor
C.	P-Type Semiconductor	III. Doping of pentavalent impurity in semiconductor
D.	P-N Junction diode	IV. Doping of trivalent impurity in semiconductor

(A) - (I), (B) - (II), (C) - (III), (D) - (IV)
(A) - (I), (B) - (III), (C) - (II), (D) - (IV)
(A) - (III), (B) - (II), (C) - (IV), (D) - (I)
(A) - (III), (B) - (IV), (C) - (I), (D) - (II)

View Solution

12.
For Poisson Brackets, which of the following statements are correct?
(A) [X, Y ] = −[Y, X]
(B) [X, X] = 0
(C) [X, Y + Z] = [X, Y ] + [Y, Z]
(D) [X, Y Z] = Y [X, Z] + [X, Y ]Z
Choose the correct answer from the options given below:
- (A) (B) and (D) only
- (A) (B) and (C) only
- (A) (B) (C) and (D)
- (B) (C) and (D) only
View Solution
13.
The equation of motion for a compound pendulum is:
- $\ddot{\theta} + \frac{mgl}{I} \cos\theta = 0$
- $\ddot{\theta} + \frac{mgl}{I} \sin \theta = 0$
- $\ddot{\theta} - \frac{mg}{I} \cos \theta = 0$
- $\ddot{\theta} - \frac{mg}{I} \cos \theta = 0$
View Solution
14.
In an LCR circuit with L = 2 mH, C = 2 µF, and R = 0.2 , the quality factor will be
- 100
- 10
- 1
- 1000
View Solution
15.
The four satellites are lying close to the earth at distances $h_1, h_2, h_3$, and $h_4$ meters respectively, away from the center of the earth. If the values of $h_i$'s are given in terms of $R$ (radius of the earth), write the time period of the satellite in increasing order:
$h_1 = R/3$
$h_2 = R/4$
$h_3 = R/5$
$h_4 = R/2$
Choose the correct answer from the options given below:
- (C), (B), (A), (D)
- (B), (A), (C), (D)
- (B), (A), (D), (C)
- (C), (B), (D), (A)
View Solution

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CUET PG PYQs for Mechanics and wave Motion with Solutions: Practice CUET PG Previous Year Questions

CUET PG PYQs for Mechanics and wave Motion with Solutions

1.
The image of the point (1 3 4) in the plane 2x − y + z + 3 = 0 is

4.
The position vector of a point in the frame S moving with constant velocity 10 cm/s along the X-axis is given by (11,9.8) cm. The position with respect to S if the two frames were coincident only 1/2 second earlier.

6.
If the radius of Earth becomes half of its present value, with its mass remaining the same, the duration of one day will become:

7.
The shortest distance between the lines
$$ \frac{x-1}{2} = \frac{y-2}{3} = \frac{z-3}{4} $$ and
$$ \frac{x-2}{3} = \frac{y-4}{4} = \frac{z-5}{5} $$ is:

8.
In order to introduce a phase difference of $\pi/2$ in a Quarter wave plate, the thickness of the crystal should have a value of... (Given: wavelength = $5893 \times 10^{-10} \, \text{m}$, refractive index for O-ray is $1.65836$ and refractive index for E-ray is $1.48641$)

9.
The Hamiltonian’s equation of motion is

12.
For Poisson Brackets, which of the following statements are correct?
(A) [X, Y ] = −[Y, X]
(B) [X, X] = 0
(C) [X, Y + Z] = [X, Y ] + [Y, Z]
(D) [X, Y Z] = Y [X, Z] + [X, Y ]Z
Choose the correct answer from the options given below:

13.
The equation of motion for a compound pendulum is:

14.
In an LCR circuit with L = 2 mH, C = 2 µF, and R = 0.2 , the quality factor will be

Comments

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CUET PG PYQs for Mechanics and wave Motion with Solutions

1.The image of the point (1 3 4) in the plane 2x − y + z + 3 = 0 is

4.The position vector of a point in the frame S moving with constant velocity 10 cm/s along the X-axis is given by (11,9.8) cm. The position with respect to S if the two frames were coincident only 1/2 second earlier.

6.If the radius of Earth becomes half of its present value, with its mass remaining the same, the duration of one day will become:

7.The shortest distance between the lines$$ \frac{x-1}{2} = \frac{y-2}{3} = \frac{z-3}{4} $$ and$$ \frac{x-2}{3} = \frac{y-4}{4} = \frac{z-5}{5} $$ is:

8.In order to introduce a phase difference of $\pi/2$ in a Quarter wave plate, the thickness of the crystal should have a value of... (Given: wavelength = $5893 \times 10^{-10} \, \text{m}$, refractive index for O-ray is $1.65836$ and refractive index for E-ray is $1.48641$)

9.The Hamiltonian’s equation of motion is

12.For Poisson Brackets, which of the following statements are correct? (A) [X, Y ] = −[Y, X](B) [X, X] = 0(C) [X, Y + Z] = [X, Y ] + [Y, Z](D) [X, Y Z] = Y [X, Z] + [X, Y ]ZChoose the correct answer from the options given below:

13.The equation of motion for a compound pendulum is:

14.In an LCR circuit with L = 2 mH, C = 2 µF, and R = 0.2 , the quality factor will be

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
The image of the point (1 3 4) in the plane 2x − y + z + 3 = 0 is

4.
The position vector of a point in the frame S moving with constant velocity 10 cm/s along the X-axis is given by (11,9.8) cm. The position with respect to S if the two frames were coincident only 1/2 second earlier.

6.
If the radius of Earth becomes half of its present value, with its mass remaining the same, the duration of one day will become:

7.
The shortest distance between the lines
$$ \frac{x-1}{2} = \frac{y-2}{3} = \frac{z-3}{4} $$ and
$$ \frac{x-2}{3} = \frac{y-4}{4} = \frac{z-5}{5} $$ is:

8.
In order to introduce a phase difference of $\pi/2$ in a Quarter wave plate, the thickness of the crystal should have a value of... (Given: wavelength = $5893 \times 10^{-10} \, \text{m}$, refractive index for O-ray is $1.65836$ and refractive index for E-ray is $1.48641$)

9.
The Hamiltonian’s equation of motion is

12.
For Poisson Brackets, which of the following statements are correct?
(A) [X, Y ] = −[Y, X]
(B) [X, X] = 0
(C) [X, Y + Z] = [X, Y ] + [Y, Z]
(D) [X, Y Z] = Y [X, Z] + [X, Y ]Z
Choose the correct answer from the options given below:

13.
The equation of motion for a compound pendulum is:

14.
In an LCR circuit with L = 2 mH, C = 2 µF, and R = 0.2 , the quality factor will be