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General Knowledge - Physics

Exercise : Physics - Section 1
  • Physics - Section 1
71.
Natural radioactivity was discovered by
Marie Curie
Ernest Rutherfor
Henri Becquerel
Enrico Fermi
Answer: Option
Explanation:
No answer description is available. Let's discuss.
72.
Planets are
luminous heavenly bodies revolving around a star
non-luminous heavenly bodies
luminous heavenly bodies that twinkle
luminous heavenly bodies that do not twinkle
Answer: Option
Explanation:
No answer description is available. Let's discuss.
73.
One nanometer is equal to
10-6m
10-8m
10-9m
10-5m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
74.
Mica is used in electrical appliances such as electric iron because mica is
a good conductor of heat but a bad conductor of electricity
a bad conductor of heat but a good conductor of electricity
a good conductor of heat as well as electricity
a bad conductor of heat as well as electricity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
75.
It is easier to roll a barrel full of coal tar than to pull it because
the full weight of the barrel comes into play when it is pulled
the rolling friction is much less than the sliding friction
more surface area of the barrel is in contact with the road when it is pulled
coal tar is a liquid and it flows in the barrel when it is rolled
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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