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प्रश्न
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.
पर्याय
Both assertion and reason are true and the reason is the correct explanation of the assertion.
Both assertion and reason are true but the reason is not the correct explanation of the assertion.
Assertion is true, but reason is false.
Both assertion and reason are false.
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उत्तर
Assertion is false, but reason is true.
Correct explanation:
Radian is the unit of plane angle.
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संबंधित प्रश्न
Electric current is a ______ quantity
The solid angle is measured in _______.
The coldness or hotness of a substance is expressed by _______.
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 |
Give the name of the instrument used for the measurement of temperature.
Name the three scales of temperature.
Define – mole.
Assertion: Radian is the angle subtended at the center of a circle by an arc whose length is equal to the radius of the circle.
Reason: 1 radian = `180/π`
How many base quantities are there?
What is the symbol for a unit of electric current?
