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2601.

Which two gases are present in an electric bulb

Answer» Which two gases are present in an electric bulb
2602.

A horizontal force of 10 N is acting on the block which doesn't change its motion. Static friction acting on the block is ___newtons.

Answer»

A horizontal force of 10 N is acting on the block which doesn't change its motion. Static friction acting on the block is ___newtons.

2603.

450 L = ___ cubic meter

Answer»

450 L = ___ cubic meter


2604.

The random movement of particles is more in:

Answer»

The random movement of particles is more in:


2605.

Why our shadows in the morning and evening are large as compared to the noon?

Answer»

Why our shadows in the morning and evening are large as compared to the noon?

2606.

The word planet comes from the Greek word ‘Planetai’ which means

Answer»

The word planet comes from the Greek word ‘Planetai’ which means


2607.

What is non periodic motion?

Answer»

What is non periodic motion?

2608.

What is the maximum and the minimum number of solar eclipses that can occur in a year?

Answer»

What is the maximum and the minimum number of solar eclipses that can occur in a year?


2609.

Sprinkling of powder on the carrom board ___ friction.

Answer» Sprinkling of powder on the carrom board ___ friction.
2610.

What is the capacity of a cuboidal container having dimensions 2 m×8 m×3 m?

Answer»

What is the capacity of a cuboidal container having dimensions 2 m×8 m×3 m?

2611.

Metals good conductors of electricity because they possess:

Answer»

Metals good conductors of electricity because they possess:


2612.

What does ‘throw a wobbly’ mean?

Answer»

What does ‘throw a wobbly’ mean?


2613.

A dark patch was observed behind a football when kept in the sunlight. This patch is better called as:

Answer»

A dark patch was observed behind a football when kept in the sunlight. This patch is better called as:

2614.

Find the volume of a cuboidal container having length of 3 m, breadth of 5 m and height of 9 m.

Answer»

Find the volume of a cuboidal container having length of 3 m, breadth of 5 m and height of 9 m.

2615.

A crowbar is a lever of ?

Answer» A crowbar is a lever of ?
2616.

Why does earth look blue-green when viewed from the space?

Answer»

Why does earth look blue-green when viewed from the space?


2617.

Question 4 Which of the following is/are not always necessary to observe a shadow? (a) Sun (b) Screen (c) Source of light (d) Opaque object

Answer»

Question 4

Which of the following is/are not always necessary to observe a shadow?

(a) Sun

(b) Screen

(c) Source of light

(d) Opaque object

2618.

Select the incorrect statement.

Answer»

Select the incorrect statement.


2619.

To use a Spring-balance we have to ensure,

Answer»

To use a Spring-balance we have to ensure,


2620.

What is backlash error ? Why is it caused ? How is it avoided ?

Answer»

What is backlash error ? Why is it caused ? How is it avoided ?

2621.

Which of the given options correctly defines the motion of a child sitting on a swing that moves forward and backward?

Answer»

Which of the given options correctly defines the motion of a child sitting on a swing that moves forward and backward?


2622.

Two bar magnets repel when brought closer to each other. Identify the north pole of the plain bar magnet.

Answer»

Two bar magnets repel when brought closer to each other. Identify the north pole of the plain bar magnet.

2623.

What are dry cells ?

Answer» What are dry cells ?
2624.

The image formed by a pinhole camera is always ___

Answer» The image formed by a pinhole camera is always ___
2625.

Which of these is the best choice for measurement?

Answer»

Which of these is the best choice for measurement?


2626.

What if there is a plastic bottle and there is a very thick cardboard inside it, will the current pass through it

Answer» What if there is a plastic bottle and there is a very thick cardboard inside it, will the current pass through it
2627.

An electric bell is an example of a/an ___ magnet.

Answer»

An electric bell is an example of a/an ___ magnet.

2628.

How many types of motions are there? What are they ?(no need to explain)

Answer» How many types of motions are there? What are they ?(no need to explain)
2629.

If two forces are applied in opposite directions to move the cart with a force of 40 N each. In which direction will the cart move?

Answer» If two forces are applied in opposite directions to move the cart with a force of 40 N each. In which direction will the cart move?

2630.

Which of the following is a non-luminous body?

Answer»

Which of the following is a non-luminous body?


2631.

Correct position of the eye is very important for taking measurements. There might be error in the reading, if our eye is not completely in front of the mark. This error is known as___ error.

Answer»

Correct position of the eye is very important for taking measurements. There might be error in the reading, if our eye is not completely in front of the mark. This error is known as___ error.

2632.

Which will roll down a hill faster -- a solid cylinder or a solid sphere?

Answer»

Which will roll down a hill faster -- a solid cylinder or a solid sphere?


2633.

In which motion are we

Answer»

In which motion are we

2634.

Which of the following is/are easily compressible?

Answer»

Which of the following is/are easily compressible?


2635.

What is rolling friction?

Answer» What is rolling friction?
2636.

Drag is the force which resists or opposes motion in ___ (solids/fluids).

Answer» Drag is the force which resists or opposes motion in ___ (solids/fluids).
2637.

What is measurement?

Answer»

What is measurement?

2638.

Shaunak does not know that what type of image is formed by the pinhole camera. Shaurya stated two statements: Statement 1: The image formed by the pinhole camera is real and erect. Statement 2: Image formed by the pinhole camera is real because there is refracting or reflecting optical elements to change the path of rays of light.

Answer»

Shaunak does not know that what type of image is formed by the pinhole camera. Shaurya stated two statements:

Statement 1: The image formed by the pinhole camera is real and erect.

Statement 2: Image formed by the pinhole camera is real because there is refracting or reflecting optical elements to change the path of rays of light.


2639.

In all opaque object the shadow will form or not

Answer»

In all opaque object the shadow will form or not

2640.

Which of the following layers of the Earth has the highest temperature?

Answer»

Which of the following layers of the Earth has the highest temperature?


2641.

Convert the following weights into grams. a. 40 kg b. 120 kg [2 MARKS]

Answer»

Convert the following weights into grams.
a. 40 kg
b. 120 kg
[2 MARKS]

2642.

Handspan and legspan are units of length that are _______ for all men.

Answer»

Handspan and legspan are units of length that are _______ for all men.


2643.

What precautions must be taken into account while making your own magnet?

Answer» What precautions must be taken into account while making your own magnet?
2644.

Which of the following diseases can be prevented using a cow magnet?

Answer»

Which of the following diseases can be prevented using a cow magnet?


2645.

Which of the following is an example of a class III lever?

Answer»

Which of the following is an example of a class III lever?


2646.

A bus covers a distance of 1488 km in 24 hours. What is the average speed of the bus?

Answer»

A bus covers a distance of 1488 km in 24 hours. What is the average speed of the bus?


2647.

A car covers a distance of 60k meters in a minute. Calculate the speed of the car in m/sec.

Answer»

A car covers a distance of 60k meters in a minute. Calculate the speed of the car in m/sec.


2648.

What action is being applied by the spiderman while hanging upside down?

Answer»

What action is being applied by the spiderman while hanging upside down?


2649.

Question 2 (iv) State whether the following statement is true or false. Maximum iron filings stick in the middle of a bar magnet when it is brought near them.

Answer»

Question 2 (iv)

State whether the following statement is true or false.

Maximum iron filings stick in the middle of a bar magnet when it is brought near them.

2650.

In a game of football:

Answer»

In a game of football: