Give any three applications of physics in our society.

What are fundamental units and derived units?

Name the SI unit for Luminous intensity and give a definition for it.

Give the values for the following units with prefixes.
(i) 1 Mega ohm
(ii) 1 milliampere
(iii) 1deca gram
(iv) 1nano second
(v) 1 micro volt
(vi) 1 centimetre

What are the advantages of the SI system?

What is Gross Error & How can it be minimised.

Does AU and \(\mathring{A}\) represent the same unit of length?

Explain unification with example.

How are theoretical predictions useful?

Write the role of physics in technology.

What is the relation of physics to biology?

How can the systematic errors be minimised?

In a physical units, how many units are there in 1 metre?
1 Astronomical unit (AU = 1.496\(\times\)10¹¹ m)
Given data:
1 AU = 1.496\(\times\)10¹¹m
1 ly = 9.467 x \(\times\)10¹⁵m
1 mm = 10^-6m
1 parsec = 3.08\(\times\)10¹⁶m

In a physical units, how many units are there in 1 metre?
1 light year = 9.467\(\times\)10¹⁵m
Given data:
1 AU = 1.496\(\times\)10¹¹m
1 ly = 9.467\(\times\)10¹⁵m
1 mm = 10^-6m
1 parsec = 3.08\(\times\)10¹⁶m

In a physical units, how many units are there in 1 metre?
1 micron (\(\mu\)) = 10^-6 m
Given data:
1 AU = 1.496\(\times\)10¹¹m
1 ly = 9.467\(\times\)10¹⁵m
1 mm = 10^-6m
1 parsec = 3.08\(\times\)10¹⁶m