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Recent questions tagged t6

What causes diffused reflection of light waves?

asked Nov 10, 2017 by priyanka.c

1 answer

When two mirrors are placed, a single source of light can be reflected and ________ are formed.

asked Nov 10, 2017 by priyanka.c

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Which among the following is the brightest star ?

asked Nov 10, 2017 by priyanka.c

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Why is it that we only see one side of the moon?

asked Nov 10, 2017 by priyanka.c

1 answer

Where does the moon positions itself on a full moon day ?

asked Nov 10, 2017 by priyanka.c

1 answer

How is the amplitude of sound measured?

asked Nov 10, 2017 by priyanka.c

1 answer

Which of the following is responsible for the conversion of vibrations to electrical signals which the brain interprets as sound?

asked Nov 10, 2017 by priyanka.c

1 answer

The magnitude of an earthquake is measured using ______.

asked Nov 10, 2017 by priyanka.c

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The two objects experiencing dry friction, ________ the movements between the surface.

asked Nov 10, 2017 by priyanka.c

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The force that opposes the motion of moving objects is called _________.

asked Nov 10, 2017 by priyanka.c

1 answer

Anions are

asked Nov 10, 2017 by priyanka.c

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Which of the following do not conduct electricity ?

asked Nov 10, 2017 by priyanka.c

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Which is the only metal which is in liquid state at room temperature?

asked Nov 10, 2017 by priyanka.c

1 answer

When we bring two magnets into contact, the like poles ___and unlike poles

asked Nov 10, 2017 by priyanka.c

1 answer

How is it that the human body is not quashed by the air pressure which is surrounded ?

asked Nov 10, 2017 by priyanka.c

1 answer

Reflection of light occurs irrespective of _______.

asked Nov 7, 2017 by priyanka.c

1 answer

Uniform reflection of light depends upon the ______

asked Nov 7, 2017 by priyanka.c

1 answer

The colour of sunlight appears in tinges during dawn and dusk. Why?

asked Nov 7, 2017 by priyanka.c

1 answer

The direction of force experienced by a conductor depends upon the _______.

asked Nov 7, 2017 by priyanka.c

1 answer

What causes lightening ?

asked Nov 7, 2017 by priyanka.c

0 answers

While connecting two cells, the ________ should be connected together.

asked Nov 7, 2017 by priyanka.c

1 answer

Cyclones are the mass of air that mostly rotates around the centre of _______

asked Nov 7, 2017 by priyanka.c

1 answer

Atmospheric pressure is exerted due to ________.

asked Nov 7, 2017 by priyanka.c

1 answer

Air occupies space?

asked Nov 7, 2017 by priyanka.c

1 answer

72 km/hr can also be expressed as

asked Nov 7, 2017 by priyanka.c

1 answer

The clock used to measure time during nights in the ancient period is called

asked Nov 7, 2017 by priyanka.c

1 answer

What is the freezing point of water?

asked Nov 7, 2017 by priyanka.c

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In coastal areas the warm air from the land rises up and the cold air from the sea move towards the land, this is termed as

asked Nov 7, 2017 by priyanka.c

1 answer

What is the reason behind the fact that cold air sinks and hot air rises up?

asked Nov 7, 2017 by priyanka.c

1 answer

The piezoelectric crystal used in modern clocks is called as

asked Nov 7, 2017 by priyanka.c

1 answer

Which line of the graph represents the greatest speed?

asked Nov 1, 2017 by priyanka.c

1 answer

Read the passage below and answer the question <br><br> Sound waves are longitudinal waves, which means they vibrate in the same direction as the direction of travel. Sound waves can only travel through solids, liquids or gases. A good model of sound waves is a spring. The section of waves when they are pushed together are areas of compressions and when the particles are far apart the areas are called rarefactions. Sound waves can be reflected, refracted and diffracted. <br><br> The hearing range of Human ear is 20Hz to 20KHz. Sounds with frequencies below 20Hz are called Infrasound and sound waves with frequencies above 20KHz are called Ultra sound. These waves have a wide applications in various fields like industry, medicine, agriculture etc; Speed of the sound can be calculated by the equation speed of sound = distance / time. <br><br> QUESTION : Similarities between light and sound waves are

asked Nov 1, 2017 by priyanka.c

1 answer

Read the passage below and answer the question <br><br> Sound waves are longitudinal waves, which means they vibrate in the same direction as the direction of travel. Sound waves can only travel through solids, liquids or gases. A good model of sound waves is a spring. The section of waves when they are pushed together are areas of compressions and when the particles are far apart the areas are called rarefactions. Sound waves can be reflected, refracted and diffracted.<br><br> The hearing range of Human ear is 20Hz to 20KHz. Sounds with frequencies below 20Hz are called Infrasound and sound waves with frequencies above 20KHz are called Ultra sound. These waves have a wide applications in various fields like industry, medicine, agriculture etc; Speed of the sound can be calculated by the equation speed of sound = distance / time. <br><br> QUESTION : Sound waves are longitudinal waves because

asked Nov 1, 2017 by priyanka.c

1 answer

Sound waves travel fastest through

asked Nov 1, 2017 by priyanka.c

1 answer

How much energy is transferred by a 50W lamp in 5 s?

asked Nov 1, 2017 by priyanka.c

1 answer

What is the gravitational field strength of the Moon?

asked Nov 1, 2017 by priyanka.c

1 answer

What is the momentum of a 50 kg object moving at 30 km/hr?

asked Nov 1, 2017 by priyanka.c

1 answer

Which of the following is not a safety feature of a car to absorb momentum

asked Nov 1, 2017 by priyanka.c

1 answer

A 50kg object is moving with a speed of 20m/s. How much force is needed to stop it in 5s?

asked Nov 1, 2017 by priyanka.c

1 answer

Which of the statements is not true? <br> 1. when a car moves along the road with a constant speed, the net force acting on the car is zero <br> 2. linear momentum is the product of mass and acceleration <br> 3. A body at rest continues to be at rest and a body in uniform motion continues to move <br> 4. The flight of rockets is in accordance with Newton's third law of motion

asked Nov 1, 2017 by priyanka.c

1 answer

What will happen to a car, if its resultant force is acting along the direction of its motion?

asked Nov 1, 2017 by priyanka.c

1 answer

The resultant force is a force

asked Nov 1, 2017 by priyanka.c

1 answer

Newton's first law states

asked Oct 31, 2017 by priyanka.c

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What does the horizontal line in a distance-time graph represent?

asked Oct 31, 2017 by priyanka.c

1 answer

A car travels 100 m in 5 minutes. What is its average speed?

asked Oct 31, 2017 by priyanka.c

1 answer

Which of the following are not responsible for acid rain?

asked Sep 19, 2017 by priyanka.c

1 answer

The particles which causes fission of U-235 atom are

asked Sep 19, 2017 by priyanka.c

1 answer

Magnetic fields do not interact with

asked Sep 19, 2017 by priyanka.c

1 answer

The radiations from the sun which is felt by us in the form of heat is

asked Sep 19, 2017 by priyanka.c

1 answer

A bar magnet falls vertically through a magnet. Its acceleration is

asked Sep 19, 2017 by priyanka.c

1 answer

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