Logo Khilare.com

Daily Quiz

1. Conversion of chemical energy into electrical energy occurs in

 Dynamos

 Atomic bombs

 Electric heaters

 Battery



2. How does the Sun get its energy

 From gravitational pressure

 From nuclear fission

 From nuclear fusion

 None of the above



3. Which colour is in the centre of Rainbow

 Green

 Yellow

 Blue

 Red



4. Which one among the following is not a chemical change

 Curdling of Milk

 Burning of coal

 Ripening of fruit

 Evaporation of water



5. Newton is a unit of

 Force

 Work

 Energy

 Acceleration



6. Speed of sound is maximum in

 Liquid

 Solid

 Gas

 Same in all cases



7. Cream gets separated from milk when it is churned because of

 Gravitational force

 Cohesive force

 Centrifugal force

 Frictional force



8. The spread in colours in a rainbow on sky is primarily due to

 Dispersion of sunlight

 Reflection of sunlight

 Reflection of sunlight

 Total internal reflection of sunlight



9. Law of Ohm defines

 a resistance

 current only

 voltage only

 both current and voltage



10. A mobile phone charger is

 a step-up transformer

 a step-down transformer

 a UPS

 an inverter



11. Which of the following is used as a material for making protective windows in space probes

 Steel

 Tungsten

 Graphite

 Diamond



12. Faraday's Law is associated with

 Reaction of gases

 Electrolysis

 Pressure of gases

 Temperature and pressure



13. Using Dynamo

 Mechanical energy is converted to electrical energy

 Mechanical energy is converted to heat energy

 Electrical energy is converted to magnetic energy

 Electrical energy is converted to mechanical energy



14. Steel is more elastic than rubber because it

 is harder than rubber

 is never deformed

 requires larger deforming force

 is deformed very easily



15. The age of the earth can be estimated by

 Atomic clocks

 Carbon dating

 Biological clocks

 Uranium dating



16. Among the material listed below sound travels the fastest in

 Hydrogen

 Vacuum

 Iron

 Steel



17. Raindrops are spherical due to

 Viscosity of water

 Surface tension

 Continuous evaporation

 Air friction



18. A device which converts AC into DC is known as

 Transformer

 Amplifier

 Rectifier

 Stabiliser



19. The freezing point of fresh water is

 -1°C

 5°C

 0°C

 2°C



20. Tesla is a unit of magnetic

 field

 induction

 moment

 flux



21. An amplifier is said to suffer from distortion when its output is

 Larger than its input

 Noisy

 High

 Different from input



22. Good conductor of electricity is

 Silver

 Aluminium

 Iron

 Copper



23. Which two colours can be mixed to make green

 Red and Blue

 Yellow and Green

 Yellow and Blue

 Green and Blue



24. Electric fuse wire is made of alloys because alloys

 Have high melting point

 Are economical

 Do not get heated easily

 Have low melting point



25. Tides are primarily a result of the

 Attraction of the moon

 Farrel's Law

 Pressure system of the earth

 Ocean currents



    

Newsletter

Subscribe to our Newsletter and stay tuned.