PPT Paper 2018 First Shift Physics
Maharashtra 11th Admission CET 2021 Sample Question Paper on Chemistry
A car travelled 50 m in 30 seconds along a horizontal road. It reached the destination with a velocity 4 times of its initial velocity. During the process, what happens to the potential energy of the car?
(a) Became 2 times of initial potential energy
(b) Became 4 times of initial Potential energy
(c) Became 8 times of initial Potential energy
(d) Did not change
d
Which of the following is not a characteristic of musical sound?
(a) Quality
(b) Loudness
(c) Wavelength
(d) Pitch
c
Which of the following does not have unit as Joule?
(a) Work
(b) Force
(c) Kinetic Energy
(d) Heat
b
Which among the following does not possess kinetic energy?
(a) A ball thrown upwards
(b) A battery
(c) A moving car
(d) A flying bird
b
A train moving with a velocity of 30 km/hr has a kinetic energy of 52000 J. When the velocity of train is increased to 60 km/hr, the work done is
(a) Zero
(b) 156000 J
(c) 104000 J
(d) 52000 J
b
A body of mass 2 kg undergoes a change of velocity of 5m/s in 5 seconds. The force acting on it is
(a) 10 N
(b) 1 N
(c) 2 N
(d) 5 N
c
If the object is at rest, then the slope of position-time graph
(a) is zero
(b) may be zero
(c) cannot be zero
(d) always greater than zero
a
If the velocity of an object is directly proportional to the time, then the object has
(a) variable acceleration
(b) uniform acceleration
(c) uniform velocity
(d) uniform speed
b
Bats detect obstacles on their path by receiving the reflected _______
(a) electro-magnetic waves
(b) ultrasonic waves
(c) radio waves
(d) infrasonic waves
b
What happens when a body is moving in a circular path with a constant speed?
(a) Force acting on it is zero
(b) Acceleration is not uniform
(c) Velicty is uniform
(d) Velocity is changing
d
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