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# Physics Quiz Questions And Answers Pdf

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Published: 13.03.2021  Centrifugation is a separation process which uses the action of centrifugal force to promote accelerated settling of particles in a solid-liquid mixture. A centrifuge is a piece of equipment that puts an object in rotation around a fixed axis, applying a force perpendicular to the axis of spin that can be very strong. It is similar to the diameter of a proton.

You have reached 0 of 0 points, 0. A particle dropped from the top of a tower uniformly falls on ground at a distance which is equal to the height of tower. Which of the following paths will be traversed by the particle?

Physics multiple choice questions and answers pdf. So please do visit examtiger regularly. This is a physics test, which contains 50 multiple choice questions. The test is attached below.

## physics multiple choice questions and answers pdf

Aluminium being a good conductor of heat conducts away the heat from the substance quite easily and causes quick freezing. A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be. Parabola, because when the coin is dropped at a particular point, it has the same velocity as the running train. So by Newton's first law, it continues its motion horizontally with that velocity.

But then, it is also pulled down by earth's gravity continuously. In this situation its horizontal motion gives way to the parabolic motion until it reaches the ground. The inability of a body to change its state of rest or uniform motion along a straight line is called its. As the inside of the cooker is painted black, heat absorption is more producing heat waves of longer wavelength which cannot escape through glass and hence are trapped inside. Thus the food is cooked. When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room.

This is an example of. Polished surfaces are poor radiators of heat. So loss of heat on that account is reduced and the electric iron remains hotter than otherwise. The core of an electromagnet is made of soft iron because soft iron has. A bucket of water is hung from a spring balance.

A piece of iron is suspended in the water without touching the sides or touching the bottom of the bucket. The reading of the spring balance. And so the pressure at the bottom of bucket also increases. Thus the total thrust at the botto also increases. Therefore the spring balance reading increases. The Camphor slowly dissolves in the water lowering the latter's surface tension in the immediate neighbourhood.

The stronger pull exerted by the uncontaminated portion of water brings about a movement of the surface and the camphor particles are carried along with it. When after sometime the whole surface settles for the reduced tension, the movement of the camphor too short. A stone floor feels cold to the bare feet but a carpet on the same floor feels warm.

This is because. Both the floor and the carpet have the same temperature as both are exposed to the same atmosphere. But the former conducts away the heat from the feet better than the carpet as the latter is a non-conductor.

So the feet losing more heat, the floor appears cooler to the feet. If a sound travels from air to water, the quantity that remain unchanged is. This is a layer of atmosphere about 60 to 70 km above the earth and extends to about km. It contains ionised particles which can reflect radio waves making radio communication round the world possible. Students can learn and improve on their skillset for using Physics Questions and Answers effectively and can also prepare for competitive examinations like They are explained in elaborated manner to get clear subject knowledge.

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Toggle navigation. Physics Questions and Answers. Pick out the only vector quantity. Show Answer. Answer: Option 'B' impulse. In a freezer ice cubes will be formed more quickly in trays made of. Answer: Option 'A' Aluminium being a good conductor of heat conducts away the heat from the substance quite easily and causes quick freezing. Which of the following is an example of continous emission spectrum? Spectrum of an oil frame. Spectrum of a water. Answer: Option 'A' Spectrum of an oil frame is an example for continuous emission spectrum.

Answer: Option 'A' Parabola, because when the coin is dropped at a particular point, it has the same velocity as the running train.

Answer: Option 'D' Flows out of Newton's first law of motion. The cover of a solar coker is made of glass because. Answer: Option 'C' As the inside of the cooker is painted black, heat absorption is more producing heat waves of longer wavelength which cannot escape through glass and hence are trapped inside.

Quality of transmission depends upon. Nature of signal only. Nature of medium only. Both A and B. Neither A nor B. A man jumping out of a moving train is thrown. None of these. Answer: Option 'B' At the time of jumping out he has the same velocity as the moving train. The base of an electric iron is brightly polished mainly. Answer: Option 'A' Polished surfaces are poor radiators of heat. Answer: Option 'C' large susceptibility and small retentivity.

An object with a constant speed. Answer: Option 'B' might be accelerated. Answer: Option 'B' will increase When the piece of iron is lowered into the water, the water level in the bucket increases.

Pieces of camphor placed on water move about rapidly. This is because of. Answer: Option 'C' The Camphor slowly dissolves in the water lowering the latter's surface tension in the immediate neighbourhood. Answer: Option 'B' Both the floor and the carpet have the same temperature as both are exposed to the same atmosphere.

In case of uniform circular motion, the acceleration is. Variable in magnitude but constant in direction. Constant in magnitude and directed radially inwards. Variable in magnitude but tangential to the circle. Answer: Option 'A' Variable in magnitude but constant in direction. Answer: Option 'D' frequency.

Radio waves sent out by a radio stations are reflected by. Answer: Option 'D' This is a layer of atmosphere about 60 to 70 km above the earth and extends to about km. On which day ' National Science Day ' is celebrated in India? February Pick out the only scalar quantity. Electric field. Answer: Option 'D' power. Recent Posts. All I. Free Mock Test. AP Grama Sachivalayam. Computer Knowledge MCQs. Quantitive Aptitude, and Logical Reasoning Abilities are the important topics explained with solved examples and explainations.

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Aluminium being a good conductor of heat conducts away the heat from the substance quite easily and causes quick freezing. A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be. ### Multiple Choice Question Answers on Physics

It is the friction between the feet and the ground that helps us to walk. Without this friction we would slip and fall. When one enters a dark room after being in bright light one is not able to see anything clearly for a while because. So in our case the pupil should dilate i. This switchover takes sometime. But here the entry into the dark room is immediate. So the eye has no time to adjust itself and hence is not able to see at all for a while.

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