Recent questions tagged t10

Which of the following causes blindness ?

asked Nov 14, 2017 by priyanka.c

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What does the law of reflection state when the ray of light reflects off a surface ?

asked Nov 14, 2017 by priyanka.c

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Which among the following is not a Jovian planet ?

asked Nov 14, 2017 by priyanka.c

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What are the major constituents of the earth's atmosphere ?

asked Nov 14, 2017 by priyanka.c

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Which of the following are properties of sound?

asked Nov 14, 2017 by priyanka.c

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Which constellation is called the Hunter's belt?

asked Nov 14, 2017 by priyanka.c

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The loudness of sound is expressed in terms of _______.

asked Nov 14, 2017 by priyanka.c

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What is the device which is installed on top of tall buildings in order to protect them from the effect of lightning ?

asked Nov 14, 2017 by priyanka.c

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What is the type of electric charge generated by rubbing ?

asked Nov 14, 2017 by priyanka.c

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What is the reason behind the streamlined shape of an aeroplane or ship ?

asked Nov 14, 2017 by priyanka.c

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Which of the following is not possible without friction ?

asked Nov 14, 2017 by priyanka.c

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In the process of electrolysis of water, what happens at the cathode ?

asked Nov 14, 2017 by priyanka.c

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What kind of force is applied to stop the bicycle while pedalling is stopped suddenly ?

asked Nov 14, 2017 by priyanka.c

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Why is it that the pressure along the earth's surface is greater ?

asked Nov 14, 2017 by priyanka.c

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In proportion to the depth measured from the surface, the hydrostatic pressure _______.

asked Nov 14, 2017 by priyanka.c

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Virtual images are formed by the ________

asked Nov 5, 2017 by priyanka.c

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The images formed by a plane mirror are always ________

asked Nov 5, 2017 by priyanka.c

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When does a virtual image occur ?

asked Nov 5, 2017 by priyanka.c

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The property of a conductor carrying current in the shape of a coil which behaves like a magnet is called as _________

asked Nov 5, 2017 by priyanka.c

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The circuit is complete when the electrical switch is in __________position.

asked Nov 5, 2017 by priyanka.c

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The longer line in the representation of a cell in an electric circuit represents _______

asked Nov 3, 2017 by priyanka.c

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The wind distributed throughout the lower atmosphere are called as ______

asked Nov 3, 2017 by priyanka.c

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What is the main reason behind wind generation ?

asked Nov 3, 2017 by priyanka.c

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The cosmic rays from the sun is deflected from entering the earth by _______

asked Nov 3, 2017 by priyanka.c

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After attending Arjun goes back home driving his car. He rode for 9 km in the east direction and found that he had crossed his house. In order to reach his home he had to travel 2 km in the west direction. The entire journey took him 5 hours. At what speed did Arjun travel averagely ?

asked Nov 3, 2017 by priyanka.c

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What is the metallic ball in a pendulum called?

asked Nov 3, 2017 by priyanka.c

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Prathithi enjoys playing in the swing. She moves fast as much as possible. Now what is the type of motion of the swing Prathithi is playing with?

asked Nov 3, 2017 by priyanka.c

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The day to day condition of the atmosphere at a place with respect to the temperature, rainfall, wind speed is called as _______.

asked Nov 3, 2017 by priyanka.c

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Heat energy is measure in the units of

asked Nov 3, 2017 by priyanka.c

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Velocity of sound is independent of

asked Oct 31, 2017 by priyanka.c

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The velocity of sound in dry air is

asked Oct 31, 2017 by priyanka.c

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On driving a scooter for a long time, the air pressure in the tyres slightly increases

asked Oct 31, 2017 by priyanka.c

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Cloudy nights are warmer than clear ones because

asked Oct 31, 2017 by priyanka.c

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When a body is immersed partially or fully in a fluid, the _______ force from the surrounding fluid acts on the body.

asked Oct 31, 2017 by priyanka.c

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The bags and suitcases are provided with broad handles

asked Oct 31, 2017 by priyanka.c

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In any kind of collision

asked Oct 31, 2017 by priyanka.c

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When a body is thrown up, work done by gravity is

asked Oct 31, 2017 by priyanka.c

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Work done is a

asked Oct 31, 2017 by priyanka.c

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Which of the following statement is not true? 1. The velocity in uniform motion doe not depend upon the time interval 2. External force is required for an object to be in uniform motion 3. For a uniform motion along a straight line in a given direction, the magnitude of the displacement is not equal to the actual distance covered by the object. 4. The average speed is equal to the arithmetic mean of individual speeds.

asked Oct 31, 2017 by priyanka.c

1 answer

A rocket with a lift off mass 20,000 kg is balanced with a net initial acceleration of 5 $m/s^2$, then the initial thrust of the blast is

asked Oct 31, 2017 by priyanka.c

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Read the following passage and answer the question below A uniform circular motion is the motion of an object travelling at a constant speed along a circular path. Centripetal force is the force required to move the body uniformly in a circle. This force acts along the radius and towards the centre of the circle. In fact when a body moves in a circle, the direction of motion at any instant is along the tangent to the circle at that instant. In other words the direction of motion of a body goes on changing continuously. According to Newton's 1st law of motion, a body cannot change its direction of motion by itself. An external force is required for this purpose. It is this force which is called as the centripetal force. On account of a continuous change in the direction of motion of the body, there is a change in the velocity of the body. Hence it undergoes an acceleration which is called centripetal acceleration. QUESTION : Centripetal force is the force which always acts ________ the centre

asked Oct 31, 2017 by priyanka.c

1 answer

Read the passage below and answer the question A uniform circular motion is the motion of an object travelling at a constant speed along a circular path. Centripetal force is the force required to move the body uniformly in a circle. This force acts along the radius and towards the centre of the circle. In fact when a body moves in a circle, the direction of motion at any instant is along the tangent to the circle at that instant. In other words the direction of motion of a body goes on changing continuously. According to Newton's 1st law of motion, a body cannot change its direction of motion by itself. An external force is required for this purpose. It is this force which is called as the centripetal force. On account of a continuous change in the direction of motion of the body, there is a change in the velocity of the body. Hence it undergoes an acceleration which is called centripetal acceleration. QUESTION : Motion of a body along a circle is

asked Oct 31, 2017 by priyanka.c

1 answer

The bouncing of a rubber ball on a cement floor is an example of

asked Oct 31, 2017 by priyanka.c

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When a spring is pulled the work done by the spring force is

asked Oct 31, 2017 by priyanka.c

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The kinetic energy of a substance is due to the _______ of the atoms contained in it.

asked Oct 30, 2017 by priyanka.c

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Read the following passage below and answer the given question Some of the conventional sources of energy have poor efficiency and produce a lot of smoke because of incomplete combustion. A few example are wood, animal dung, agricultural wastes etc; Wood has poor efficiency because only 8% of the wood is utilized as fuel. This results in incomplete combustion. Also, it produces gases like carbon di oxide which is hazardous to our health. Animal dung when mixed with mud and made in the form of cakes,which are then dried and burnt are also used for domestic purpose. As it burns, it produces a lot of smoke and hence results in air pollution. Agricultural wastes like sugarcane are burnt for use in industries. This is more preferable for biogas plants. QUESTION : Animal dung and agricultural waste are preferable for

asked Oct 17, 2017 by priyanka.c

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Read the following passage and answer the question given below Some of the conventional sources of energy have poor efficiency and produce a lot of smoke because of incomplete combustion. A few examples are wood, animal dung, agricultural wastes, etc; Wood has poor efficiency because only 8% of the wood is utilized as fuel. The results in incomplete combustion. Also, it produces gases like carbon di oxide which is hazardous to our health. Animal dung when mixed with mud and made in the form of cakes, which are then dried and burnt are also used for domestic purpose. As it burns, it produces a lot of smoke and hence results in air pollution. Agricultural wastes lie sugarcane are burnt for use in industries. This is more preferable for biogas plants. QUESTION : The smoke which is produced by the conventional source is due to

asked Oct 17, 2017 by priyanka.c

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Two identical prisms A'B'C' are given. Which of the following placements will give maximum dispersion ?

asked Oct 17, 2017 by priyanka.c

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A red rose when seen through a green filter will appear

asked Oct 17, 2017 by priyanka.c

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The angle between two refracting faces of a prism is known as

asked Oct 17, 2017 by priyanka.c

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