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प्रश्न
One mole of a substance contains _______ atoms or molecules.
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उत्तर
One mole of a substance contains 6.023 x 10+23 atoms or molecules.
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संबंधित प्रश्न
Electric current is a ______ quantity
The solid angle is measured in _______.
If one coulomb of charge is flowing in one minute, it is called ‘ampere’
Amount of substance gives the number of particles present in a substance.
Angle formed at the top of a cone is an example for ‘plane angle’
Match the following.
| Temperature | Closeness to the actual value |
| Plane angle | Measure of hotness or coldness |
| Solid angle | Closeness to two or more measurements |
| Accuracy | Angle formed by the intersection of three or more planes |
| Precision | Angle formed by the intersection of two planes |
Consider the statement given below and choose the correct option.
Assertion: Radian is the unit of solid angle.
Reason: One radian is the angle subtended at the center of a circle by an arc of length equal to its radius.
What is electric current?
Temperature is a measure of total ______ of the particles in a system.
How many base quantities are there?
