NSO Level 1- Science Olympiad (SOF) Class 10: Questions 971 - 973 of 986

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Question 971

Question

Match List-Ⅰ List-Ⅱ▾

Match both the columns and mark the correct option from the codes given below:

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

Malleability

(i)

They are poor conductors of heat and electricity

(B)

Reactivity

(ii)

Substance due to which it can be beaten into thin sheet.

(C)

Conduction of electricity

(iii)

They generally form acidic or neutral oxides with oxygen.

(D)

Ductility

(iv)

Metals can be drawn into wires.

Choices

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

a.

  • (iii)
  • (ii)
  • (i)
  • (iv)

b.

  • (iii)
  • (i)
  • (iv)
  • (ii)

c.

  • (ii)
  • (iii)
  • (i)
  • (iv)

d.

  • (iv)
  • (i)
  • (ii)
  • (iii)

Question 972

Question

MCQ▾

A uniform magnetic field exists in the plane of paper pointing from left to right as shown in figure. In the field an electron and a proton move as shown. The electron and the proton experience.

The Proton Experience

Choices

Choice (4)Response

a.

Force pointing opposite and along the direction of the uniform magnetic field respectively

b.

Forces both pointing into the plane of paper

c.

Forces pointing into the plane of paper and out of the plane of paper, respectively

d.

Forces both pointing out of the plane of paper

Question 973

Question

MCQ▾

Read the given statements and mark the correct option

Statement 1: In solar cells less initial cost but high maintenance

Statement 2: Solar cells are device that convert solar energy into electricity

Choices

Choice (4)Response

a.

Only statement 1 is correct

b.

Only statement 2 is correct

c.

Question does not provide sufficient data or is vague

d.

All of the above

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