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61.

Which of the following is brightest planet?

A.	Mercury	B.	Venus
C.	Mars	D.	Jupiter

62.

The orbits of planets around the sun, or of satellites around the earth can be:

A.	Circular and elliptic	B.	Circular and hyperbolic
C.	Elliptic and parabolic	D.	Parabolic and hyperbolic

63.

The fastest planet is:

A.	Saturn	B.	Jupiter
C.	Mercury	D.	Pluto

64.

The planet that has no satellite is:

A.	Mars	B.	Uranus
C.	Pluto	D.	Neptune

65.

The change in colour of stars arises due to:

A.	Variation in their distance from the earth	B.	Variation in their surface temperature
C.	Fluctuations in their composition and size	D.	Irregular absorption or scattering in earth's atmosphere

66.

The North Star is a part of the constellation:

A.	Orion	B.	Big dipper
C.	Little dipper	D.	Cassiopsiea

67.

The outermost layer of the sun is called:

A.	Lithosphere	B.	Chromospheres
C.	Corona	D.	Photosphere

68.

The planet having the largest number of satellites in the solar system is:

A.	Mars	B.	Jupiter
C.	Saturn	D.	Uranus

69.

An observer at a point on the earth where only the penumbra region of moon's shadow will move past, will observe a:

A.	Total solar eclipse	B.	Partial solar eclipse
C.	Total lunar eclipse	D.	None of these

70.

The radiant energy of the sun is transmitted in the form of:

A.	Particles	B.	Short waves
C.	Long waves	D.	None of these