NSO Level 1- Science Olympiad (SOF) Class 10: Questions 970 - 972 of 986

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Question number: 970

» Light - Reflection and Refraction

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MCQ▾

Question

Choose incorrect option for Image formed by Plane Mirror.

Choices

Choice (4) Response

a.

Laterally inverted

b.

Virtual and Erect

c.

The image formed is as for behind the mirror as the object is in front of it

d.

The size of image is Greater than of object

Question number: 971

» Metals and Non - Metals

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Match List-Ⅰ List-Ⅱ▾

Question

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 number: 972

» Magnetic Effects of Electric Current

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MCQ▾

Question

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

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