Please select a subject first
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Value based question
Once a person starts taking drugs or alcohol it is difficult to get rid of the habit. Why?
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Calculate the number of water molecules present in one drop of water which weighs 0.18 g.
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The electronic configuration of metal A is 2, 8, 18, 1.
The metal A when exposed to air and moisture forms B a green layered compound. A with con. H2 SO4 forms C and D along with water. D is a gaseous compound. Find A, B, C, and D.
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Name the simplest ketone and give its structural formula.
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How does leech suck blood from the host?
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How is the circulatory system designed in leech to compensate the heart structure?
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Differentiate between Medullated and non-medullated nerve fibre.
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All the nerves in the body are covered and protected by meninges.
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The essential parts of a flower are ______.
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Identify the parts A, B, C, and D?
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Write the events involved in the sexual reproduction of a flowering plant.
Discuss the first event and write the types.
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Write the events involved in the sexual reproduction of a flowering plant.
a. Discuss the first event and write the types.
b. Mention the advantages and the disadvantages of that event.
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In which part of the flower germination of pollen grains takes place?
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The maximum speed of vibrations which produces audible sound will be in ______.
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Match the following
| Column I | Column II |
| Newton’s I law | propulsion of a rocket |
| Newton’s II law | Stable equilibrium of a body |
| Newton’s III law | Law of force |
| Law of conservation of linear momentum | Flying nature of bird |
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Classify the types of force based on their application.
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If a 5 N and a 15 N forces are acting opposite to one another. Find the resultant force and the direction of action of the resultant force.
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Match the items in column-I to the items in column-II
| Column-I | Column-II | ||
| 1. | Linear expansion | (a) | change in volume |
| 2. | Superficial expansion | (b) | hot body to cold body |
| 3. | Cubical expansion | (c) | 1.381 X 10-23 JK-1 |
| 4. | Cubical expansion | (d) | change in length |
| 5. | Boltzmann constant | (e) | change in area |
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The ratio of the potential difference to the current is known as ________.
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