1. Which principle is used to implement Wheatstone's bridge?
Coulomb's law
Kirchhoff's law
Ampere's law
Faraday's law
2. Wherer in hydra is Zoochlorella found?
Ectodernis
Gastrodermis
Mesoglea
Coelenteron
3. Which compound is optically active?
CH3CH=CHCH3 \mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCH}_{3} CH3CH=CHCH3
(CH3)3C−OH \left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}-\mathrm{OH} (CH3)3C−OH
CH3CH(NH2)−COOH \mathrm{CH}_{3} \mathrm{CH}\left(\mathrm{NH}_{2}\right)-\mathrm{COOH} CH3CH(NH2)−COOH
NO2−CH2Cl \mathrm{NO}_{2}-\mathrm{CH}_{2} \mathrm{Cl} NO2−CH2Cl
4. A car is moving with 8.0kmh−1 8.0 \mathrm{kmh}^{-1} 8.0kmh−1 velocity. An object is thrown from the car with 16.0kmh−1 16.0 \mathrm{kmh}^{-1} 16.0kmh−1 velocity. At what angle the object has to be thrown for it's path to create right angle with the path of the car?
60∘ 60^{\circ} 60∘
80∘ 80^{\circ} 80∘
90∘ 90^{\circ} 90∘
120∘ 120^{\circ} 120∘
5. He asked me__________________.
whether I have done the job the previous day.
Whether I had done the job yesterday.
whether I had done the job the previous day.
whether had I done the job the previous day