NSO Level 1- Science Olympiad (SOF) Class 10: Questions 737 - 742 of 986

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Question number: 737

» Light - Reflection and Refraction

Edit
MCQ▾

Question

In optics an object which has higher refractive index is known as

Choices

Choice (4)Response

a.

Refractive index

b.

Optically denser

c.

Optical density

d.

Optically rarer

Question number: 738

» Sources of Energy

Edit
MCQ▾

Question

Energy harnessed from the heat of the sun is known as

Choices

Choice (4)Response

a.

Geo thermal energy

b.

Thermal energy

c.

Biogas energy

d.

All of the above

Question number: 739

» Carbon and Its Componds

Edit
MCQ▾

Question

Double bond between two carbon atoms, can be found in

Choices

Choice (4)Response

a.

Alkenes

b.

Butane

c.

Heptane

d.

Alkyne

Passage

Direction: Read the passage carefully and answer the questions below

Thermal Power Plant:

Fossil Fuels such as coal are burnt. They are used to heat water to produce steam. The steam moves the turbines. The movement of these turbines generate electricity. This is called a Thermal Power Plant because the heat energy obtained from burning fossil fuels is used to generate electricity

Question number: 740 (1 of 2 Based on Passage) Show Passage

» Sources of Energy

Edit
MCQ▾

Question

Thermal power plants are generally found

Choices

Choice (4)Response

a.

Hot region

b.

Near coal and oil field

c.

Away from human society

d.

None of the above

Question number: 741 (2 of 2 Based on Passage) Show Passage

» Sources of Energy

Edit
MCQ▾

Question

Fill the blank space.

One can use the ________ energy stored in the fuel, burning it and then converting it into ________energy. This energy is utilized to operate an electrical generator to generate electricity.

Choices

Choice (4)Response

a.

Chemical, Mechanical

b.

Kinetic, Steam

c.

Kinetic, Mechanical

d.

Heat, Chemical

Question number: 742

» Our Environment and Its Management

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)

Carnivore

(i)

Phytoplankton

(B)

Omnivore

(ii)

Deer

(C)

Primary producers

(iii)

Cattle

(D)

Herbivores

(iv)

Raccoon

Choices

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

a.

  • (iv)
  • (iii)
  • (i)
  • (ii)

b.

  • (iii)
  • (iv)
  • (ii)
  • (i)

c.

  • (ii)
  • (iv)
  • (i)
  • (iii)

d.

  • (iii)
  • (ii)
  • (i)
  • (iv)

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