WBJEE-JENPAS-UG SERIES Physical-sciences
Speed And Velocity
5 previous year questions.
Volume: 5 Ques
Yield: Medium
High-Yield Trend
2
2023 3
2022 Chapter Questions 5 MCQs
01
PYQ 2022
medium
physical-sciences ID: wbjee-je
Velocity-time graph of a body is given. Which of the following statements are true?
1
Acceleration from B to C is less than that from O to A.
2
Velocity from A to B is uniform.
3
The body moves from C to D with uniform acceleration
4
Acceleration form A to B is zero.
02
PYQ 2022
medium
physical-sciences ID: wbjee-je
A boy throws a ball straight up at a velocity 10 m/s and catches it when it returns. What will be the velocity of the ball just before the boy catches it?
1
20m/s
2
0 m/s
3
10 m/s
4
5 m/s
03
PYQ 2022
medium
physical-sciences ID: wbjee-je
Approximate velocity of sound in air at room temperature is
1
340 m/s
2
34 m/
3
3400 m/s
4
3.4 m/s
04
PYQ 2023
medium
physical-sciences ID: wbjee-je
Which is/are correct for -ray?
1
The velocity of the -ray is identical with the light.
2
-rays are deflected by electric field.
3
-rays can ionize a gas to a very large extent.
4
Electromagnetic radiation of Ī³-ray is of very shorter wave length than and -rays.
05
PYQ 2023
medium
physical-sciences ID: wbjee-je
An object is sliding down an inclined plane. The velocity changes at a constant rate from 10 cm/s to 15 cm/s in two seconds. What is its acceleration ?
1
5 m/sĀ²
2
7.5 m/sĀ²
3
2.5 m/sĀ²
4
12.5 m/sĀ²