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Q) 'Gunpowder' was invented by
Correct Answer - Option
(B)
No Explanation found. Add Explanation and get +2 points.
Science MCQ Questions with answers
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Q) Who invented 'safety pin'?
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
J
Q) Which one of the following types of coal is difficult to light in the open air?
Correct Answer - Option
(D)
No Explanation found. Add Explanation and get +2 points.
R
Q) The oesophagus and lining of the mouth are also covered with ......... ?
Correct Answer - Option
(A)
Explanation:
The oesophagus and lining of the mouth are also covered with Squamous epithelium
U
Q) What is the third proportional to 9 and 12 ?
Correct Answer - Option
(B)
No Explanation found. Add Explanation and get +2 points.
R
Q) ......... tissue is found beneath the skin, around the kidneys and between the internal organs ?
Correct Answer - Option
(D)
Explanation:
Adipose tissue is commonly known as body fat. It is found all over the body. It can be found under the skin (subcutaneous fat), packed around internal organs (visceral fat), between muscles, within bone marrow
R
Q) The kinetic energy acquired by a mass (m) in traveling distance starting from rest under the action of constant force is directly proportional to ?
Correct Answer - Option
(B)
Explanation:
Work done by external forces = Change in kinetic energy Since particle starts from rest, its initial Kinetic Energy is 0. Therefore, K.E.=Fd It is given that force is constant. We see that Kinetic energy is independent of mass
V
Q) A 5 ? resistance wire is doubled on it. Calculate the new resistance of the wire ?
Correct Answer - Option
(A)
Explanation:
Resistance (R) = 5 ? The Resistance of wire = R = p L / A When the wire is doubled, its length becomes half, and the area of cross-section is doubled = R = p L / A = p L/2 / 2A = 1/4 p L / A = = 1.25 ? New Resistance
Q) Which of the following represents the equation for position-time relation ?
Correct Answer - Option
(B)
Explanation:
s = ut + 1/2at2 shows the relation between position and time
V
Q) The SI unit of electric charge is _______ ?
Correct Answer - Option
(D)
Explanation:
The SI unit of electric charge is Coulomb (C). Ampere is the SI unit of electric current. Volt is the unit of electric potential difference. Joule is the unit of energy
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