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General Science English Tamil Nadu PSC (Pre) 2018 Punjab PSC (Pre) 2014 UPPCS (Pre) 2005

Q2201.The rain drops are spherical because

AThey fall from big height BThe air has resistance CThe water has surface tension DNone of the above

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General Science English Uttarakhand Lower Sub. (Pre) 2010 Chhattisgarh PCS (Pre) 2003 Uttarakhand PCS (Mains) 2002 39th BPSC (Pre) 1994

Q2202.Spherical form of raindrop is due to

ADensity of liquid BSurface tension CAtmospheric pressure DGravitational force

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General Science English RAS/RTS (Pre) 2013

Q2203.The most important property of nanomaterial is

AForce BFriction CPressure DTemperature

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General Science English IAS (Pre) 1997

Q2204.The tendency of a liquid drop to contract and occupy minimum area is due to

ASurface tension BViscosity CDensity DVapour pressure

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General Science English IAS (Pre) 2001

Q2205.Consider the following statements. A Simple Pendulum is set into oscillation. Then, 1. the acceleration is zero when the bob passes through the mean position. 2. in each cycle the bob attains a given velocity twice. 3. both acceleration and velocity of the bob are zero when it reaches its extreme position during the oscillation. 4. the amplitude of oscillation of the simple pendulum decreases with time. Which of these statements are correct?

A1 and 2 B3 and 4 C1, 2 and 4 D2, 3 and 4

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General Science English Kerala PSC (Pre) 2012 UPPCS (Pre) 1992

Q2206.Which of the following pairs is correctly matched? List-I (a) Radium (b) Penicillin (c) X-ray (d) Smallpox List-II 1. Alexander Fleming 2. Madam Curie 3. Edward Jenner 4. W.K. Roentgen Code (a) (b) (c) (d)

A2 B2 C3 D4

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General Science English Karnataka PSC (Pre) 2019 Chhattisgarh PCS (Pre) 2008

Q2207.Assertion (A): The weight of human being on the Moon is1/6 in comparison to Earth. Reason (R): The Moon does not have gravity like Earth. Select the answer from following codes.

ABoth (A) and (R) are true and (R) is the correct explanation of BBoth (A) and (R) are true, but (R) is not the correct explanation of (A) C(A) is true, but (R) is false D(A) is false, but (R) is true

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General Science English IAS (Pre) 1997

Q2208.A smooth plane inclined at an angle q with the horizontal as shown in the given figure. A body starts from rest and slides down on the inclined surface. The time taken by the body to reach the bottom is

A2h g B2l g Csinq h g Dsin q 2h g

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General Science English IAS (Pre) 1996

Q2209.The variation of displacement d with time t in the case of a particle falling freely under gravity from rest is correctly shown in the graph.

ADiagram A — see source PDF page 527 BDiagram B — see source PDF page 527 CDiagram C — see source PDF page 527 DDiagram D — see source PDF page 527

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General Science English UPPCS (Mains) 2012

Q2210.There is no atmosphere on the Moon because

AIt is near to the Earth BIt receives light from the Sun CIt revolves around the Earth DThe escape velocity of gas molecules on it is less than the root mean square velocity here

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General Science English Punjab PSC (Pre) 2019 RAS/RTS (Pre) 1992

Q2211.What will happen if an object is thrown into space with the speed of 8 km/s?

AThe object will go into space BIt will return to Earth CIt will rotate into the orbit of Earth DIt will burst out

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General Science English Tamil Nadu PSC (Pre) 2019 RAS/RTS (Pre) 1993

Q2212.Earth’s escape velocity is

A15.0 km/s B21.1 km/s C7.0 km/s D11.2 km/s

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General Science English Arunachal Pradesh PSC (Pre) 2018 RAS/RTS (Pre) 1997

Q2213.A pendulum clock can run faster in

ASummer BWinter CSpring season DRainy season

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General Science English IAS (Pre) 1997

Q2214.A girl is swinging on a swing in sitting position. When the girl stands up, the period of the swing will

ABe shorter BBe longer CDepends on the height of the girl DNot change

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General Science English UPPCS (Pre) 2012, 1994

Q2215.Why do pendulum checks usually lose time in summer?

ADue to longer days in summer BDue to friction caused by coils CThe length of the pendulum increases, increasing the time period of unit oscillation DThe weight of the pendulum change in summer

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General Science English 47th BPSC (Pre) 2005

Q2216.The time period of a pendulum

ADepends on the mass BDepends on its length CDepends on time DDepends on temperature

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General Science English MPPCS (Pre) 2017

Q2217.A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because

AThe batsman did not hit the ball hard enough BVelocity is proportional to the force exerted on the ball CThere is a force on the ball opposing the motion DThere is no unbalanced force on the ball, so the ball would try to come to rest

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General Science English UPPCS (Pre) 1990

Q2218.If a person sitting in a lift, then when will he feel that his weight gets increased?

AWhen the elevator going upward expeditiously BWhen the elevator going down expeditiously CGoing upward with constant velocity DGoing downward with constant velocity

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General Science English IAS (Pre) 2013

Q2219.The known forces of nature can be divided into four classes, viz., gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them which one of the following statements is not correct?

AGravity is the strongest of the four BElectromagnetism acts only on particles with an electric charge CWeak nuclear force causes, radioactivity DStrong nuclear force holds protons and neutrons inside the nucleus of an atom

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General Science English UPPCS (Mains) 2013

Q2220.Satellite is kept moving in its orbit around the Earth; it is due to

ACentrifugal force BCentripetal force CGravitational force or lack of it DSome other forces

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