Beyond the seven base SI units lie 22 derived units
Flux, or the number of field lines of the magnetic field passing through a given area. It was named in honour of a famous SerbianAmerican engineer. In this unit, the strength of the earth’s magnetic field is around 32 microY. Name Y. other similar entit
◣ QUESTION 1
◣ is the derived unit used to measure solid angles. 1 ◣ is roughly 3,283 square degrees. More generally, it’s the amount of solid angle a unit area on a unit sphere’s surface subtends at the sphere’s centre. Name ◣.
◣ QUESTION 2
The unit of this derived unit is squared current times the fourth power of the second per kilogram per squared metre. A capacitor with capacitance equal to one of this unit can store an electric charge of one coulomb when the potential difference between the two plates of the capacitor is one volt. Name this unit.
◣ QUESTION 3 QUESTION 4
This unit is named for a Swedish medical physicist who did important work on the biological effects of radiation and is important in dosimetry and radiation shielding. One of these units stands for one joule of radiation energy being deposited in one kilogram of biological tissue. Name it.
◣ QUESTION 5
Z is a derived unit used to specify the catalytic activity of an enzyme. One Z means the conversion of one mole of some substance per second. (One mole is around 602 billion trillion atoms, molecules or any
Answers to April 9 quiz:
1. Possibly weakest estimate of a force is between a proton and an electron in this atom
– Ans: Hydrogen atom
2. Weapon that produces 1.68 kilonewton per metresquared of sound pressure
– Ans: Stun grenade
3. Device fit to spacecraft to move them using radiation pressure – Ans: Solar sail
4. Entity measured as that flowing between two conductors exerting 0.0002 millinewton per metre – Ans: Current
5. Weight lifters exert around 8,000 newton of force during this manoeuvre – Ans: Clean and jerk
Visual: Krakatoa
First contact: Muhammed Shahid Suri | Shiva Nigam | K.N. Viswanathan