General Knowledge
PHYSICS MCQs
Total Questions : 1565
| Page 4 of 157 pages
Answer: Option A. -> Avoid the tracks being distorted due to seasonal temperature variation
A small gap is left at the joints of rails in a railway track to avoid the tracks being distorted due to seasonal temperature variation.
A small gap is left at the joints of rails in a railway track to avoid the tracks being distorted due to seasonal temperature variation.
Answer: Option A. -> Water freezes and expands in its volume
Water in pipes freeze in cold countries. Due to the anomalous expansion of water, it expands instead of contacting when there is a fall in temperature below 4°c. So, the water pipes burst due to the excess space consumed by the ice after freezing.
Water in pipes freeze in cold countries. Due to the anomalous expansion of water, it expands instead of contacting when there is a fall in temperature below 4°c. So, the water pipes burst due to the excess space consumed by the ice after freezing.
Answer: Option A. -> Decreases
When a liquid is heated, its volume increases and mass of liquid being same density decreases.
When a liquid is heated, its volume increases and mass of liquid being same density decreases.
Answer: Option C. -> Necessary centripetal force may be obtained from the horizontal component of the weight of the train
Railway tracks are banked at the curves so that the necessary centripetal force may be obtained from the horizontal component of the reaction on the train.
Railway tracks are banked at the curves so that the necessary centripetal force may be obtained from the horizontal component of the reaction on the train.
Answer: Option A. -> Water expands on freezing
Water in pipes freeze in cold countries. Due to the anomalous expansion of water, it expands instead of contacting when there is a fall in temperature below 4°c. So, the water pipes burst due to the excess space consumed by the ice after freezing.
Water in pipes freeze in cold countries. Due to the anomalous expansion of water, it expands instead of contacting when there is a fall in temperature below 4°c. So, the water pipes burst due to the excess space consumed by the ice after freezing.
Answer: Option C. -> The angular speed of the body
Moment of inertia depends on distribution of body, axis of rotation and mass of the body. It is not dependent on angular velocity of the body.
Moment of inertia depends on distribution of body, axis of rotation and mass of the body. It is not dependent on angular velocity of the body.
Answer: Option C. -> Acceleration
The energy possessed by a body by virtue of its motion is called kinetic energy. Potential Energy is the energy possessed by virtue of its position or configuration. When a body falls from an aeroplane, there is increase in its acceleration.
The energy possessed by a body by virtue of its motion is called kinetic energy. Potential Energy is the energy possessed by virtue of its position or configuration. When a body falls from an aeroplane, there is increase in its acceleration.
Answer: Option C. -> Force
According to Newton, force can never occur singly in nature; it is the mutual interaction between two bodies. This formed the basis of Newton's Third Law of motion which states: “To every action, there is always an equal and opposite reaction.” Forces always occur in pairs.
According to Newton, force can never occur singly in nature; it is the mutual interaction between two bodies. This formed the basis of Newton's Third Law of motion which states: “To every action, there is always an equal and opposite reaction.” Forces always occur in pairs.
Answer: Option D. -> Inertia
Newton's first law of motion is sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Newton's first law of motion is sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Answer: Option C. -> Third law
For every action, there is an equal and opposite reaction, is Newton's third law.
For every action, there is an equal and opposite reaction, is Newton's third law.
Latest Videos
Latest Test Papers
Login With Google
Old way of Login
Login With Email