A. one tenth of the solar mass
B. one thousandth of the solar mass
C. one hundredth of the solar mass
D. half the solar mass
Answer –D. half the solar mass
Explanation-
42. The darkest portion of the shadow cast during an eclipse is: [(SSC CHSL (10+2) DEO & LDC 2014]
A. Corona
B. Umbra
C. Penumbra
D. Black hole
Answer –B. Umbra
Explanation-
43. Which planets do not have satellites revolving around them ? [SSC Multi-Tasking Staff 2013]
A. Mars and Venus
B. Mercury and Venus
C. Mars and Mercury
D. Neptune and Pluto
Answer – C. Mars and Mercury
Explanation-
44. The planet which has the highest surface temperature is [(SSC CGL Tier-I Re-Exam. (2013)]
A. Jupiter
B. Earth
C. Pluto
D. Venus
Answer –C. Pluto
Explanation-
45. In a solar or lunar eclipse, the region of earth’s shadow is divided into: [(SSC CAPFs SI, CISF ASI & Delhi Police SI 2015]
A. Five parts
B. Four parts
C. Two parts
D. Three parts
Answer – A. Five parts
Explanation-
46. A spinning neutron star is known as: [SSC GL Tier-I Exam. 2014]
A. White dwarf
B. Black hole
C. Pulsar
D. Quasar
Answer –A. White dwarf
Explanation-
47. Which planet in our solar system is nearly as big as the earth ? [(SSC (10+2) Level Data Entry Operator & LCD 2011]
A. Mercury
B. Mars
C. Venus
D. Pluto
Answer – B. Mars
Explanation-
48. When the moon completely covers the sun, it is known as_ [SSC CHSL (10+2) DEO & LDC 2014]
A. the Antumbra
B. the Umbra
C. the Penumbra
D. None of these
Answer – C. the Penumbra
Explanation-
49. The total number of planets revolving around the sun is: [(SSC CAPFs SI, CISF ASI & Delhi Police SI 2015]
A. Five
B. Eight
C. Seven
D. Six
Answer – C. Seven
Explanation-
50. On which of the following planets water cycle is available? [SSC Section Officer (Audit) 1997 ]
A. Jupiter
B. Earth
C. Mars
D. Venus
Answer –B. Earth
Explanation-