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7. State true or false. If false, correct the statement - III

1. Quartz clocks are used in GPS devices.

The statement is

Quartz clocks are used by International Time Distribution Services
Atomic clocks are used in GPS device

2. Angle formed at the top of a cone is an example for ‘plane angle’.

The statement is

A plane angle is an angle at the intersection of two straight lines or two planes
A solid angle is an angle at the intersection of two straight lines or two planes

3. The number \(4.582\) can be rounded off as \(4.58\).

The statement is

If the last digit is less than \(5\), retain the previous number as the same
If the last digit is greater than \(5\), retain the previous number as the same

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