NSO Level 1- Science Olympiad (SOF) Class 10: Questions 904 - 906 of 986

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Question 904

Question

MCQ▾

A metallic rod falls under gravity with its ends pointing east and west. Then

Choices

Choice (4)Response

a.

An emf is induced in it cuts the magnetic lines of force

b.

Its acceleration is equal to the product of g and the radius of d ring

c.

No emf id induced at all

d.

Two emf՚s of equal but opposite signs are induced giving not net emf

Question 905

Question

MCQ▾

Read the given statements and mark the correct option.

Statement 1: Metals have low density

Statement 2: Non-metals are malleable and ductile.

Choices

Choice (4)Response

a.

Statements 1 and 2 are wrong.

b.

Only Statement 1 is true.

c.

Statements 1 and 2 are true.

d.

Only Statement 2 is true.

Question 906

Question

Match List-Ⅰ List-Ⅱ▾

Match column I and column II and select the correct option from the codes given below.

List-Ⅰ (Column I)List-Ⅱ (Column II)
(A)

Galvanometer

(i)

Convert an AC generator into a DC generator

(B)

Generator

(ii)

Fleming left hand rule

(C)

Electric motor

(iii)

Detect the presence of a current in a circuit

(D)

Split ring commutator

(iv)

Fleming right hand rule

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (i)
  • (ii)
  • (iv)

b.

  • (iii)
  • (iv)
  • (ii)
  • (i)

c.

  • (ii)
  • (i)
  • (iv)
  • (iii)

d.

  • (iv)
  • (iii)
  • (i)
  • (ii)

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