Thermodynamics Questions for NEET. We covered all the Thermodynamics Questions for NEET in this post for free so that you can practice well for the exam.
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MCQ on Thermodynamics for NEET Students
A flag is suspended from the handle of a moving bike moving with a horizontal acceleration of 10 √3 m/s². What will be its angle of inclination with vertical? (g = 10 m/s²)
(A) 90°
(B) 45°
(C) 60°
(D) 30°
Option c – 60°
A body of mass 20 kg collides against a wall with a velocity of 5 m/s and rebounds with the same speed. What will change in its momentum?
(A) 20 kg m/s
(B) 50 kg m/s
(C) 100 kg m/s
(D) 200 kg m/s
Option d – 200 kg m/s
Two masses of 4 kg and 2 kg respectively are connected by a weightless string. What will be the acceleration on 2 kg mass if both masses are pulled by a force of 20 N and tension of 10 N is applied on the string?
(A) 6 m/s²
(B) 5 m/s²
(C) 8 m/s²
(D) 10 m/s²
Option b – 5 m/s²
Find the radius of the horizontal loop executed by an aircraft that has a speed of 120 m/s with wings banked at an angle of 10°. (g = 10 m/s²)
(A) 17 km
(B) 25 km
(C) 36 km
(D) 8 km
Option d – 8 km
Three blocks of masses 3 kg, 5 kg, and x kg respectively are connected to each other with a string and are then placed on a frictionless horizontal surface. The system is pulled by a force of 8 N. If the tension between 3 kg mass and 5 kg mass is 8 N, then calculate x. (g = 10 m/s²)
(A) 10 kg
(B) 4 kg
(C) 7 kg
(D) 5 kg
Option c – 7 kg
Calculate the work done by a block of mass 20 kg against friction, if it slides over a distance of 2 m. (u= 0.3 and g = 10 m/s²)
(A) 122.6 J
(B) 120 J
(C) 200 J
(D) 188.4 J
Option b – 120 J
What will be the ratio of the square of the time of flight to height for a projectile?
(A) 3/2
(B) 5/4
(C) 2/3
(D) 4/5
Option d – 4/5
Find the work done by the force of gravity on a particle of mass 50 g, when it is thrown vertically upwards with a speed of 10 m/s.
(A) – 2.5 J
(B) – 3 J
(C) – 5 J
(D) – 1.5 J
Option a – – 2.5 J
A body is projected at an angle of projection of 60° with vertical. To get the same range with the same velocity of projection, the body can also be projected at an angle of
(A) 180°
(B) 30°
(C) 45°
(D) 90°
Option b – 30°
Find the angle of elevation of the gun, which fires a bullet with a velocity of 84 m/s up to a range of 50 m. (g = 10 m/s²)
(A) 10°
(B) 6°
(C) 2°
(D) 4°
Option c – 2°
What will be the ratio of potential energy in spring of spring constants 2000 N/m and 4000 N/m respectively, subjected to the same force?
(A) 4 : 1
(B) 1 : 4
(C) 1 : 2
(D) 2 : 1
Option d – 2 : 1
The potential energy is
(A) an absolute quantity.
(B) a relative quantity.
(C) always a positive quantity.
(D) a constant quantity.
Option b – a relative quantity
A car is negotiating a curved road of a radius of 60 m. If the coefficient of friction between the tyres and the road is 0.5, the car will skid if its speed exceeds
(A) 4.98 m/s
(B) 17.32 m/s
(C) 10.64 m/s
(D) 15.43 m/s
Option b – 17.32 m/s
Calculate the height achieved by an object after impact, if it falls from a height of 5 m and there is a 50 % loss of energy due to impact.
(A) 1.5 m
(B) 2.5 m
(C) 6.5 m
(D) 4.5 m
Option b – 2.5 m
A particle moves with constant angular velocity in a circle. During the motion, its
(A) energy is conserved.
(B) momentum is conserved.
(C) energy and momentum both are conserved.
(D) none of the above is conserved.
Option a – energy is conserved.
A light string passing over a smooth light pulley connects two blocks of masses 2 kg and 4 kg (vertically). What will be the acceleration of the system? (g = 10 m/s²)
(A) – 1.23 m/s²
(B) 6.67 m/s²
(C) – 4.28 m/s²
(D) – 3.33 m/s²
Option d – – 3.33 m/s²
Find the velocity of water in the turbine if the waterfalls on its wheels from a height of 20 m. (g = 10 m/s²)
(A) 30 m/s
(B) 20 m/s
(C) 10 m/s
(D) 40 m/s
Option b – 20 m/s
What will be the acceleration of a 5 kg block resting on a horizontal surface when a force of 200 N is applied to it? (μ = 0.2)
(A) 24 m/s²
(B) 56 m/s²
(C) 42 m/s²
(D) 38 m/s²
Option d – 38 m/s²
Calculate the magnitude of the net acceleration of the cyclist if he is riding with a speed of 80 km/hr. As he approaches a circular turn on the road of a radius of 100 m, he applies brakes and reduces his speed at a constant rate of 4 m/s².
(A) 4.9 m/s²
(B) 6.8 m/s²
(C) 7.4 m/s²
(D) 6.4 m/s²
Option d – 6.4 m/s²
When the angle between the line of action of force and displacement is 90°, then ( Thermodynamics Questions for NEET )
(A) no work is done.
(B) work done is negative.
(C) maximum work is done.
(D) minimum work is done.
Option a – no work is done.
Find the power of the man when he is riding on a cycle with a velocity of 10 km/hr up a hill having an inclination of 1 in 10 and the total mass of the man and cycle is 60 kg.
(A) 326.2 W
(B) 210 W
(C) 163.5 W
(D) 174.1 W
Option c – 163.5 W
A chain of 200 uniform links has a mass of 3 kg and length of 2 m with the ends fastened together, it is set to rotate at 2000 rev/min. The centripetal force on each link is
(A) 309 N
(B) 255 N
(C) 496 N
(D) 209 N
Option d – 209 N
If two bodies adhere to each other after the collision, then the collision is
(A) perfectly elastic.
(B) partially elastic.
(C) perfectly inelastic.
(D) partially inelastic.
Option c – perfectly inelastic.
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