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Question (11)

QN003801

A student observes 15 filings near one pole, 17 near the second pole and 3 near the centre. What fraction of the total filings are near the poles?

(A) 32/35
(B) 3/35
(C) 17/35
(D) 15/35

Correct Answer: A

Explanation:

Total = 35, near poles = 32, fraction = 32/35.

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Question (12)

QN003802

Which of the following is impossible according to the properties of poles?

(A) A magnet having two poles
(B) A magnet having North and South poles
(C) A magnet broken into smaller magnets
(D) A magnet having only one pole

Correct Answer: D

Explanation:

A single magnetic pole cannot exist.

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Question (13)

QN003803

If a bar magnet is broken into two pieces, each piece will have:

(A) Only a North pole
(B) Only a South pole
(C) Both North and South poles
(D) No poles

Correct Answer: C

Explanation:

Each piece becomes a smaller magnet.

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Question (14)

QN003804

A magnet is broken into 5 pieces. How many North poles will exist altogether?

(A) 1
(B) 2
(C) 5
(D) 10

Correct Answer: C

Explanation:

Each piece has one North pole.

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Question (15)

QN003805

A magnet is broken into 8 smaller pieces. How many magnetic poles are present in total?

(A) 8
(B) 16
(C) 4
(D) 2

Correct Answer: B

Explanation:

Each piece has 2 poles, so 8 × 2 = 16.

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Question (16)

QN003806

What conclusion was drawn from Activity 4.2 regarding poles?

(A) Poles exist only in bar magnets
(B) Attraction is maximum near poles
(C) Poles exist only after heating
(D) Poles disappear on breaking a magnet

Correct Answer: B

Explanation:

Iron filings collect mostly near poles.

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Question (17)

QN003807

Which statement correctly defines a pole of a magnet?

(A) The middle portion of a magnet
(B) The region where attraction is weakest
(C) The end region where attraction is strongest
(D) Any point on the magnet

Correct Answer: C

Explanation:

Poles are the strongest attracting regions.

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Question (18)

QN003808

A magnet attracts 50 filings. If 44 are found near the poles, how many are found away from the poles?

(A) 44
(B) 50
(C) 6
(D) 94

Correct Answer: C

Explanation:

50 − 44 = 6.

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Question (19)

QN003809

Which observation supports the existence of poles in every magnet?

(A) Magnets are heavy
(B) Iron filings gather near the ends
(C) Magnets float on water
(D) Magnets are metallic

Correct Answer: B

Explanation:

The ends are the pole regions.

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Question (20)

QN003810

A student claims that a magnet can be cut to obtain only a North pole. This claim is:

(A) Correct
(B) Partly correct
(C) Incorrect
(D) True only for strong magnets

Correct Answer: C

Explanation:

A single pole cannot exist.

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Question (11)

A student observes 15 filings near one pole, 17 near the second pole and 3 near the centre. What fraction of the total filings are near the poles?

Explanation:

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Question (12)

Which of the following is impossible according to the properties of poles?

Explanation:

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Question (13)

If a bar magnet is broken into two pieces, each piece will have:

Explanation:

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Question (14)

A magnet is broken into 5 pieces. How many North poles will exist altogether?

Explanation:

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Question (15)

A magnet is broken into 8 smaller pieces. How many magnetic poles are present in total?

Explanation:

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Question (16)

What conclusion was drawn from Activity 4.2 regarding poles?

Explanation:

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Question (17)

Which statement correctly defines a pole of a magnet?

Explanation:

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Question (18)

A magnet attracts 50 filings. If 44 are found near the poles, how many are found away from the poles?

Explanation:

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Question (19)

Which observation supports the existence of poles in every magnet?

Explanation:

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Question (20)

A student claims that a magnet can be cut to obtain only a North pole. This claim is:

Explanation:

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