Lakshya Education MCQs

Question: What is the age of the solar system?
Options:
A.5000 million years
B.15 billion years
C.5 million years
D.None of these
Answer: Option A
: A

Ans. (a)

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Question 1. Diamond Ring is a phenomenon observed
  1.    at the start of a total solar eclipse
  2.    at the end of a total solar eclipse
  3.    only along the peripheral regions of the totality trail
  4.    only in the central regions of the totality trail
Answer: Option C
: C

Ans. (c) Explanation Diamond ring is a phenomenon observed only along the peripheral regions of the totality trail.
Question 2. A meteor is
  1.    a rapidly moving star
  2.    a piece of matter which has entered the earth's atmosphere from outer space
  3.    part of a constellation
  4.    a comet without tail
Answer: Option B
: B

Ans. (b) Explanation : Meteors are the pieces of matter which have entered the earth's atmosphere from outer space by the gravitational force of the earth, when they pass close to the earth. Once these objects enter into the thick atmosphere of the earth, due to the friction they burn before reaching the earth.
Question 3. The clouds floods in the atmosphere because of their low
  1.    Temperature
  2.    velocity
  3.    pressure
  4.    density
Answer: Option D
: D

Ans. (d) Explanation As the clouds are less denser than the air below.

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