NSO Level 1- Science Olympiad (SOF) Class 10: Questions 670 - 673 of 986

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Question number: 670

» Magnetic Effects of Electric Current

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MCQ▾

Question

A positively charged particle (alpha particle) projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is

Choices

Choice (4)Response

a.

Towards east

b.

Upward

c.

Downward

d.

Towards south

Question number: 671

» Our Environment and Its Management

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MCQ▾

Question

What changes would you suggest in your home in order to be environment-friendly?

Choices

Choice (4)Response

a.

Use drip irrigation for watering the plants

b.

Save energy, turn off lights when not in use

c.

Use kitchen wastes as manure

d.

All a. , b. and c. are correct

Question number: 672

» Light - Reflection and Refraction

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MCQ▾

Question

If reflecting surface is straight and flat that is known as

Choices

Choice (4)Response

a.

Spherical Mirror

b.

Concave Mirror

c.

Plane Mirror

d.

Convex Mirror

Question number: 673

» Light - Reflection and Refraction

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MCQ▾

Question

Which of the following statement is false?

Choices

Choice (4)Response

a.

A line drawn in the direction of propagation of light is known as a ray of light

b.

A group of rays of light emitted by a source of light is known as a beam of Light

c.

A group of light rays parallel to each other is known as parallel beam of light

d.

A group of light rays spreading out from a source of light is known as a convergent beam of light

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