The area of a leaf can be measured using a _______

The girth of a tree can be measured by

Assertion: The least value that can be measured using screw gauges, vernier calipers is called least count. Reason:The magnitude of difference between the true value and the measured value is called relative error or fractional error.

The AC voltage across a resistance can be measured using

True or False: Length of one's chest can be measured by using metre scale.

The range of distance can be measured by the direct method is………….

Growth in plants can be measured in terms of

Assertion: Very large distances such as distance of a planet or star can be measured by parallax method. Reason: For measuring small masses of atomic/ sub-atomic particles, mass spectrograph is used.

Quantity that can be measured is called

alternating current can be measured by