(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Physics

Complete the following: 1 quintal =………kg

Complete the following : 1 a.m.u (or u) =……..kg

What is a leap year?

The year 2020 will have February of 29 days'. Is this statement true?

What is a lunar month?

Complete the following: 1 nano second =……….s.

Complete the following: 1 µs =……….s

Complete the following:

1 mean solar day = _______ s.

Complete the following: 1 year =……….s.

Name the physical quantities which are measured in the given units: u

Name the physical quantities which are measured in the given units:-

ly

Name the physical quantities which are measured in the given units:-

ns

Name the physical quantities which are measured in the given units:

nm

Tick the most appropriate answer.

The surest test of magnetism is

The mass of an oxygen atom is 16.0 u. Express it in kg.

It takes time 8 min for light to reach from the sun to the earth surface . If speed of light is taken to be `3 xx 10^8   "m/s"^-1` , find the distance from the sun to the earth in km .

‘The distance of a star from the earth is 8.33 light minutes.’ What do you mean by this statement? Express the distance in metre.

Explain the meaning of the term 'least count of an instrument' by taking a suitable example.

A boy makes a ruler with graduations in cm on it, (i.e. 100 divisions in 1 m). To what accuracy  this  ruler can measure? How can this accuracy be increased?

What is backlash error? Why is it caused? How is it avoided?