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प्रश्न
What do you mean by luminous intensity?
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उत्तर
The measure of the power of the emitted light, by a light source in a particular direction, per unit solid angle, is called luminous intensity.
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संबंधित प्रश्न
Electric current is a ______ quantity
Luminous intensity is the intensity of ______
The solid angle is measured in _______.
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: Electric current, amount of substance, luminous intensity are the fundamental physical quantities.
Reason: They are independent of each other.
Give the name of the instrument used for the measurement of temperature.
Name the three scales of temperature.
What are the differences between plane angle and solid angle?
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`
