Electric current is a ______quantity

(a)

base

(b)

supplementary

(c)

derived

(d)

professional

SI unit of temperature is __________

(a)

celsius

(b)

fahrenheit

(c)

kelvin

(d)

ampere

_______ can be used as memory or storage element in the computers.

(a)

Condutors

(b)

Insulators

(c)

Supercondutors

(d)

Semiconductors

__________ is the measure of the perceived power of light.

(a)

Luminous flux

(b)

Luminous power

(c)

Luminous Intensity

(d)

Both a and b

The unit of charge is ______

(a)

Coulomb

(b)

Ampere

(c)

Radian

(d)

Steradian

The uncertainty in measurement is called as _______.

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Errors

The closeness of the measured value to the original value is _______

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Accuracy

The intersection of two straight lines gives us_______.

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Plane angle

___________ is used to measure each base quantities

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Standard unit

The melting point of pure ice is ______

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0^oC

Accuracy

(1)

Closeness to the Actual Value

Precision

(2)

candela

Luminous intensity

(3)

Steradian

Solid angle

(4)

radian

plane angle

(5)

Closeness to two or more measurements

Mention the types of clocks based on their display.

How many times will the ‘minute hand’ rotate in one hour?

Name the metric systems of units.

What is the upper fixed point of the kelvin scale?

Which thermometer measures the temperature of an object without any physical contact?

What is measurement?

Name some common systems of measurement.

Define- Temperature.

Name the three things needed for a perfect measurement?

Define the magnitude of an electric current.

List out the base quantities with their units.

Write a note on Greenwich Mean time (GMT) and Indian Standard Time (IST)