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You Are On Question Answer Bank SET 2008
100401. An iron needle slowly placed on the surface of water floats on it because?
Answer: of its surface tension
100402. A drop of oil is placed on the surface of water. What will happen to it?
Answer: It will spread as a thin layer
100403. Soap helps in cleaning the clothes because:?
Answer: It reduces the surface tension of solution
100404. If the diameter of capillary be doubled, the rise of water in capillary will be?
Answer: Half
100405. When the distance between two bodies increases, the force between them will?
Answer: Decrease
100406. The acceleration due to gravity is maximum at the?
Answer: Poles
100407. The gravitational force on a body placed at the centre of the earth will be?
Answer: Zero
100408. The freely falling body appears to be weightless. Why?
Answer: The force exerted by the earth is being used to accelerate the body.
100409. What is the force that opposes the relative motion of two bodies that are in contact?
Answer: Friction
100410. The phenomenon of photoelectric effect was first explained by?
Answer: Albert Einstein
100411. What is the ability of fluids to offer resistance to flow?
Answer: Viscosity
100412. The frictional force offered by a liquid is called?
Answer: Viscous force
100413. Examples of viscous liquids?
Answer: Glycerine; Castor oil; Coal tar and honey
100414. Force of attraction between molecules of the same kind is called?
Answer: Force of cohesion
100415. Force of attraction between molecules of different kinds is called?
Answer: Force of adhesion
100416. The internal force developed within a body when forces are applied on it is called?
Answer: Elastic force
100417. Is steel or rubber more elastic?
Answer: Steel is much more elastic than rubber
100418. The force between a magnet and a magnetic material or between two magnets is called?
Answer: Magnetic force
100419. The path of the projectile is called?
Answer: trajectory
100420. The trajectory of a projectile moving under the influence of a constant acceleration is a?
Answer: Parabola
100421. The projectile has maximum range when the angle of projection is?
Answer: 450
100422. Why does an athlete run some distance before taking a long jump?
Answer: By running the athelets gives himself larger inertia of motion
100423. What is Newton’s third law of motion?
Answer: To every action there is an equal and opposite reaction
100424. The “theory of relativity” was explained by?
Answer: Albert Einstein
100425. Albert Einstein got the Nobel Prize for Physics in 1921 for explaining?
Answer: Photo Electric Effect
100426. The incapability of a body to change by itself its state of rest or its state of uniform motion along a straight line?
Answer: Inertia
100427. According to Newton’s third law every force is accompanied by an equal and opposite force. Then how can a movement take place?
Answer: Action and reaction act on different bodies
100428. Swimming is possible on account of?
Answer: Third law of motion
100429. When we jump out of a boat standing in water it moves?
Answer: Backward
100430. A man is at rest in the middle of a pond on perfectly smooth ice. He can get himself to the shore by making use of Newton’s?
Answer: Third law
100431. A cannon after firing recoils due to?
Answer: Newton’s third law of motion
100432. Newton’s second law gives the measure of?
Answer: Force
100433. The ability of a solid to return to its original shape, on the removal of the external force is called?
Answer: Elasticity
100434. If a solid does not regain its original shape and size, when the deforming force is removed, it is called?
Answer: Plastic
100435. Substances which can be elastically stretched to large values of strain are called?
Answer: elastomers
100436. An elastomer in human body?
Answer: Aorta
100437. The mass per unit volume of a substance is known as its?
Answer: density
100438. The ship entering from a river in to sea rises up a little. Why?
Answer: The density of a sea water is higher than that of river water
100439. An iron nail floats on mercury but sinks in water, why?
Answer: The specific density of iron is lower than that of mercury and higher that that of water
100440. കേരളത്തിൽ ഏറ്റവും കൂടുതൽ തേയില ഉള്ളതെവിടെ ? [Keralatthil ettavum kooduthal theyila ullathevide ?]
Answer: ഇടുക്കി [Idukki]
100441. കേരളത്തിൽ ഏറ്റവും കൂടുതൽ കാപ്പി ഉള്ളതെവിടെ ? [Keralatthil ettavum kooduthal kaappi ullathevide ?]
Answer: വയനാട് [Vayanaadu]
100442. കേരളത്തിൽ ഏറ്റവും കൂടുതൽ ദേശീയപാതകൾ ഉള്ളതെവിടെ ? [Keralatthil ettavum kooduthal desheeyapaathakal ullathevide ?]
Answer: എറണാകുളം [Eranaakulam]
100443. കേരളത്തിൽ ഏറ്റവും കൂടുതൽ റബ്ബർ ഉള്ളതെവിടെ ? [Keralatthil ettavum kooduthal rabbar ullathevide ?]
Answer: കോട്ടയം [Kottayam]
100444. കേരളത്തിൽ ഏറ്റവും കൂടുതൽ നാളികേരം ഉള്ളതെവിടെ ? [Keralatthil ettavum kooduthal naalikeram ullathevide ?]
Answer: കോഴിക്കോട് [Kozhikkodu]
100445. കേരളത്തിൽ ഏറ്റവും കൂടുതൽ നെല്ല് ഉള്ളതെവിടെ ? [Keralatthil ettavum kooduthal nellu ullathevide ?]
Answer: പാലക്കാട് [Paalakkaadu]
100446. കേരളത്തിൽ ഏറ്റവും കൂടുതൽ എള്ള് ഉള്ളതെവിടെ ? [Keralatthil ettavum kooduthal ellu ullathevide ?]
Answer: കൊല്ലം [Kollam]
100447. കേരളത്തിൽ ഏറ്റവും കൂടുതൽ ജല വൈദ്യുത പദ്ധതി ഉള്ളതെവിടെ ? [Keralatthil ettavum kooduthal jala vydyutha paddhathi ullathevide ?]
Answer: ഇടുക്കി [Idukki]
100448. കേരളത്തിൽ ഏറ്റവും കൂടുതൽ അടയ്ക്ക ഉള്ളതെവിടെ ? [Keralatthil ettavum kooduthal adaykka ullathevide ?]
Answer: കാസർഗോഡ് [Kaasargodu]
100449. കേരളത്തിൽ ഏറ്റവും കൂടുതൽ കൈതച്ചക്ക ഉള്ളതെവിടെ ? [Keralatthil ettavum kooduthal kythacchakka ullathevide ?]
Answer: എറണാകുളം [Eranaakulam]
100450. കേരളത്തിൽ ഏറ്റവും കൂടുതൽ റിസർവ് വനം ഉള്ളതെവിടെ ? [Keralatthil ettavum kooduthal risarvu vanam ullathevide ?]
Answer: പത്തനംതിട്ട [Patthanamthitta]
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