SURA PUBLICATION-PROBLEMS-4 MARKS-Subjective Type Questions
- A beam of light passing through a diverging lens of focal length 0.3 m...
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- A 100 watt bulb is used for 5 hours daily and four 60 watt bulbs are u...
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- A source and listener are both moving towards each other with a speed ...
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- At 10^(@)C, how for away is a reflecting surface if you hear an echo i...
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- An object is placed at a distance 20 cm from a convex lens of focal le...
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- Keeping the temperature as constant, a gas is compressed four times of...
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- Calculate the number of atoms of oxygen and carbon in 5 moles of CO^(2...
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- What would be the pH of an aqueous solution of sulphuric acid which is...
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- Two bodies have a mass ratio of 3:4. The force applied on the bigge...
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- Three resistors of 1Omega, 2 Omega and 4Omega are connected in paralle...
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- A source of sound is moving with a velocity of 50ms^(-1) towards a sta...
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- The solubility of sodium nitrate at 50^(@)C and 30^(@)C is 114g and 96...
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- An object of height 3 cm is placed at 10 cm from a concave lens of foc...
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- Calculate the gram molar mass of the following. (1). H(2)O (2) CO(...
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- A piece of steel has a length 2 m at 200K . At 250 K its length increa...
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- Calculate the amount of energy released when a radioactive substance u...
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- A container whose capacity is 70 ml is filled with a liquid up to 50 m...
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- At what height from the center of the Earth the acceleration due to gr...
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- A solution is made from 35 ml of Methanol and 65 ml of water. Calculat...
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- An electric iron consumes energy at the rate of 420 W when heating is ...
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