Q.51. Most important effect of moon on earth is that
(a) Gives light
(b) Causes earthquake
(c) Causes solar & lunar eclipse
(d) Effects tides of ocean (Correct)
Q.52. The term ” Meteor” is applied to an interplanetary body,
(a) Before it enter the earth`s atmosphere
(b) After it enters the earth`s atmosphere (Correct)
(c) After it centers the earth`s atmosphere
(d) After it centers the earth`s atmosphere and lands on the surface of the earth without exploding in mid air
Q.53. Newton’s rings are
(a) Celestial body named by Newton
(b) Rings presented to newton by a king
(c) An optical phenomenon
(d) Coloured rings observed around the point of contact of a convex lense (Correct)
Q.54. The heat received by earth from the sun is known as
(a) Insulation
(b) Solar heat
(c) Solar radiation (Correct)
(d) Thermal radiation`s
Q.55. Constellation is
(a) Configuration of fixed stars resembling a figure (Correct)
(b) Group of satellites
(c) Group of comets
(d) None of above