NSO Level 1- Science Olympiad (SOF) Class 10: Questions 912 - 914 of 986

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Question number: 912

» Chemical Reactions and Equation

Edit
MCQ▾

Question

Which of the following is not a double displacement reaction?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 913

» Light - Reflection and Refraction

Edit
MCQ▾

Question

Select the only incorrect option in case of a convex mirror:

Choices

Choice (4) Response

a.

Table of the case of a convex mirror: Choice A

Table of the case of a convex mirror

Object position

Image position

Image size

Nature of image

At

At on the other side of the lens

Higher size of the object

Virtual and Erect

b.

Table of the case of a convex mirror: Choice B

Table of the case of a convex mirror

Object position

Image position

Image size

Nature of image

At infinity

At the focus

Much Greater than object

Virtual and Erect

c.

Table of the case of a convex mirror: Choice C

Table of the case of a convex mirror

Object position

Image position

Image size

Nature of image

Beyond

Between on the other side of the lens

Smaller than the object

Real and inverted

d.

Table of the case of a convex mirror: Choice D

Table of the case of a convex mirror

Object position

Image position

Image size

Nature of image

Behind the object

Larger than object

Virtual and Erect

Question number: 914

» Sources of Energy

Edit
Match List-Ⅰ List-Ⅱ▾

Question

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)

Ocean Thermal energy

(i)

Magma

(B)

Wind Energy

(ii)

Cluster

(C)

Biogas

(iii)

Ammonia

(D)

Geothermal

(iv)

Slurry

Choices

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

a.

  • (i)
  • (iii)
  • (iv)
  • (ii)

b.

  • (ii)
  • (iv)
  • (i)
  • (iii)

c.

  • (iv)
  • (ii)
  • (i)
  • (iii)

d.

  • (iv)
  • (iii)
  • (ii)
  • (i)