1:   Geostationary satellite
Options:
1. falls with g towards the earth
2. has period of 24 h
3. has equatorial orbit
4. all the above

Explanation:

Sorry, No description available.

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2:   A spring of spring constant 5 X 10^3 N/m is stretched initially by 5 cm from the unstretched position. Then the work required to stretch it further by another 5 cm, is
Options:
1. 12.50 Nm
2. 18.75 Nm
3. 25 nm
4. 6.25 Nm

Explanation:

Sorry, No description available.

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3:   Which is most elastic
Options:
1. iron
2. copper
3. quartz
4. wood

Explanation:

Sorry, No description available.

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4:   The potential energy of a molecule increases when it is brought to the surface from the interior of a liquid because
Options:
1. at the free liquid surface gravitational potential energy is more
2. work has to be done to move a molecule to the surface against the repulsive component of the inter molecular forces
3. work has to be done to move a molecule to the surface against the attraction from other molecules
4. none of these

Explanation:

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5:   A wire suspended vertically from one of its ends is stretched by attaching a weight of 200 N to the lower end. The weight stretches the wire by 1 mm. Then the elastic energy stored in the wire is
Options:
1. 0.2 J
2. 10 J
3. 20 J
4. 0.1 J

Explanation:

Sorry, No description available.

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6:   Writing on black board with a piece of chalk is possible by the property of
Options:
2. cohesive force
3. surface tension
4. viscosity

Explanation:

Sorry, No description available.

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7:   Write copper, steel, glass and rubber in order increasing coefficient elasticity
Options:
1. steel, rubber, copper, glass
2. rubber, glass, copper, steel
3. rubber, glass, copper, steel
4. none of these

Explanation:

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8:   The radii of two equal lengths of wire are int he ratio 2:1, when stretched by same force, the ratio of increase in lengths will be
Options:
1. 1:4
2. 1:2
3. 2:1
4. 8:1

Explanation:

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9:   Two wires of same material are such that length and diameter of A is twice the length and diameter of B. the ratio of forces producing same increase in length will be
Options:
1. 1:1
2. 1:2
3. 2:1
4. 4:1

Explanation:

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10:   Radius of wire A is twice that of B. Both are stretched by same force. Stress on B is with respect to stress on A
Options:
1. equal
2. four times
3. twice
4. half

Explanation:

Sorry, No description available.

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If you try to save wisdom until the world is wise, Father, the world will never have it.
-Walter M. Miller Jr. A Canticle for Leibowitz