Q1 Of the following which is the unit of distance
- parsec
- light year
- astronomical Unit
- All the three
All the three
Q2 One light year is equal to
- `3\times10^{6}`
- `4\times10^{8}`
- `9.46\times10^{15}`m
- `3\times10^{9}`
`3\times10^{8}`
Q3 Who discovered the law of gravitation?
- Newton
- Henry Becquerel
- Pierre Curie
- none of these
Newton
Q4 Which of the following is not a unit of distance?
- Angstrom
- Fermi
- barn
- parsec
barn
Q5 Which one of the following is not a unit of time?
- Lunar month
- solar day
- leap year
- parallactic second
parallactic second
Q6 A dimensionless quantity
- never has a unit
- always has a unit
- may have a unit
- does not exist
may have a unit
Q7 The physical quantity strain has .
- fundamental unit
- Basic unit
- No unit
- No unit
No unit
Q8 Optical fibres are based on
- Total internal reflection
- Refraction
- Dispersion
- polarization
Total internal reflection
Q9 Which of the following is wrongly matched?
- Calorimeter – Humidity
- Coulomb’s law – Charges
- Barometer- Pressure
- Lactometer - Milk
Calorimeter – Humidity
Q10 Strong nuclear force is how many times stronger than Gravitational force
- `10^{28}`
- `10^{8}`
- `10^{18}`
- `10^{38}`
`10^{38}`
Q10 Strongest force in nature is
- Gravitational force
- Electromagnetic force
- Nuclear force
- Weak force
Nuclear force
Q10 Electromagnetic force is
- attractive in nature
- repulsive in nature
- attractive as well as repulsive in nature
- none of these
attractive as well as repulsive in nature
