This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Why is the base current in a transistor so much less than the collector current? |
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Answer» Explanation: Base is much NARROWER and thinner than COLLECTORS,hence the majority of charge carriers are received by collector.Hence,collector CURRENT is greater than base current. |
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| 2. |
Why is spring constant inversely proportional to length? |
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Answer» Spring constant is not INVERSELY proportional to length. |
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| 3. |
Why isolated system in thermodynamics does not exist? |
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Answer» In thermodynamics the total ENERGY can not be UTILISE in WORK so that's why ISOLATED thermodynamics does not exist |
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| 4. |
In case three vector quantity of same type in which case the resultant cannot be zero |
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| 5. |
What Will happen if you happen to step accidently on nail |
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Answer» HEYA!! --------- ----------------------------------------------------------------------------------------------------- ✔If we step up on a nail , we shall feel hurt and all of a sudden we shall PULL our feet back . This is due to the fact that whenever we feel hurt , a sudden SPONTANEOUS reaction is produced in the body . This is called REFLEX ACTION . ----------------------------------------------------------------------------------------------------- |
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| 6. |
Why is a rock salt prism is used instead of a glass prism to obtain the infrared spectrum? |
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Answer» The infrared spectrum is absorbed by glass PRISM and therefore, we cannot see the infrared spectrum through a glass prism. WHEREAS, a ROCK SALT prism doesn't ABSORB these infrared spectrum and we could see the infrared spectrum through it. |
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| 9. |
Why are most carbon compounds for conductor of electricity? |
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Answer» Because they are not ABLE to PRODUCE IONS but GRAPHITE is EXCEPTION |
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| 10. |
Which will have greater displacement? if a player takes 1 run and another takes three run? |
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Answer» Both will have same displacement. |
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| 11. |
calculate the number of times a human heart beats in life of 100 years old man. time for one heart beat is 0.8s |
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| 12. |
Define define the term vector? Give examples? explain |
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Answer» Vector QUANTITY are quantity in which they are defined by both its MAGNITUDE and as well as DIRECTION l. |
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| 13. |
Explane Newton's law |
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Answer» There are 3 Newton's laws of motion. Newton's FIRST law: If a body is in the state of rest , it remains to be in state of rest until an external force is applied on it. Similarly, if a body is in the state of motion, it remains in the state of motion until an external force is applied on it. This property of an object to remain in its state is called Inertia. There are two types of inertia 1. Inertia of rest 2. Inertia of motion. Newton's second law: ACCORDING to Newton's second law the force applied on a body is directly proportional to the rate of change in momentum. We know that Momentum = mass * velocity Acceleration = Change in velocity/time ⇒ velocity = acceleration * time So, Momentum = mass * acceleration * time Momentum = Force * time [As F = ma] Force = Change in momentum/change in time Newton's third law of motion: According to Newton's third law, for every action, there will be an equal and opposite reaction. For example: If a book is placed on a table, the book exerts some amount of force on the table and the table also exerts the same amount of force on the book keeping the net force 0. So, the book remains in rest. I HOPE you understand my EXPLANATION and also this helps you. |
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| 14. |
Which components of an endothermic reaction have a higher heat content? |
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Answer» Product COMPONENTS of an ENDOTHERMIC reaction have a higher HEAT CONTENT |
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| 15. |
Which contains more heat bucket at temp 45 or bucket at temp 60? |
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Answer» HEYA HERE is your answer Bucket at TEMPERATURE 60 will CONTAIN more heat. HOPE IT HELPS you |
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| 16. |
When liquid rotate at constant angular velocity about a vertical axis of rigid body? |
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Answer» Bdjshsjsgsysuaiiaoajsvdhdhsbsnmskshsbsbshsjsjjsjsnsvdhshsuuwjwk sbsbhsyeyevbsysushsvevbdhcixkdnfjufhdbdbdjdjbdvdyehbemslwihebqb sbwguwbsvfxysiqplqjshycvxbznkseugegeywipqlqkshdgdvxvnzmzlwowueu hshsuwiskannzhxydhsijabzhxjbdgdhsjmwnaus |
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| 17. |
State two effects of force when applied on a body |
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Answer» 1. we are STABLE DUE to gravity 2. we can move FORWARD or backward by applying FORCE |
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| 18. |
Creep is esentially a? |
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Answer» Creep is essentially a slow process of PLASTIC deformation under the action of stress is below the yield of STRENGTH of material. A typical curve of deformation versus loading time. |
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| 19. |
When archaeologists dig the ground why do theyusually find older remains at lower levels? |
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Answer» They FIND older remains in the deep because they have been dugged there for thousand of years and now have changed into FOSSILS. at lower LEVELS there are more fossils |
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| 20. |
What is the specific heat capacity of crude oil at 77.5 degrees? |
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Answer» Stance M, kg/kmol R, kJ/kg·K* cp, kJ/kg·K cv, kJ/kg·K k cp/cv |
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| 21. |
Can we see rainbow in a laboratory why or why not |
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Answer» Yes we can SEE the rainbow in laboratory because rainbow is formed by the PROCESS of DISPERSION in which the when pass through the prism or water molecules it can BREAKER into its 7 basic colour which we know |
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| 22. |
Why do you think that solar eclipse is a fairly uncommon phenomenon |
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Answer» No solar eclips is not a uncommon PHENOMENON.total solar ECLIPSES are rare at any particular location because TOTALITY exists only along a narrow path on the EARTH's SURFACE traced by the Moon's shadow or umbra. An eclipse is a natural phenomenon. |
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| 23. |
WHO IS GIVEN THE NAME OUR GALAXY AS MILKY WAY? |
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Answer» Hey, ✋ there your answer________, |
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| 24. |
What is concept behind formation of images in concave mirror? |
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Answer» The PARALLEL comes and GETS reflected from the concave mirror and being a concave mirror it converges the BEAM of LIGHT at the focus. |
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| 25. |
Why are multiples and submultiples required |
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Answer» When the distance is smaller , we use Dm ( decimetre , CM(centimetre) and mm ( millimetre) . These are CALLED the SUBMULTIPLES of Metre. |
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| 26. |
What do you understand by the term friction?explain how it caused? |
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Answer» The force which oppose motion is CALLED FRICTION. |
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| 27. |
Paragraph on projectile |
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Answer» Here is your ANSWER..... |
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| 28. |
Why it is difficult to produced transverse waves in liquids and gases? |
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Answer» Because in liquid and GASES,intermollecullar SPACE is more due to this waves bands at spaces in liquid and GAS |
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| 29. |
Explain why a completly immursed empty bottle in water when released it bounces back on the surface |
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Answer» HEY mate here is your ANSWER.... A completly immursed empty bottle in WATER when released it bounces BACK on the SURFACE because of the buoyant force acting upwards on the bottle is much more than the pressure exerted by the bottle on water. Therefore, it bounces back. hope the answer helps |
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| 30. |
When the voltage across a capacitor is tripled the stored charge? |
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Answer» The CHARGE stored in CAPACITOR is directly proportional to VOLTAGE. |
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| 31. |
When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as? |
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Answer» HEY MATE here is your ANS . COMPOUND PENDULUM |
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| 32. |
Why we should not burn plastic and synthetic fibres? |
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Answer» Because they RELEASE hamful gases LIKE carbon mono OXIDE which is very harmful for our heath. |
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| 33. |
What kind of friction is between a wheel and the road? |
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Answer» Order by active oldest votes |
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| 34. |
Why in plain make food easy in pressure cooker but not in hills? |
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Answer» Because the PREASSURE is low in HILLS TJIS is the reason |
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| 35. |
Total and specific quantities in thermodynamics answer |
| Answer» EVERY ACTION has an EQUAL and OPPOSITE REACTION | |
| 36. |
2. give two examples each for a contact force and a force at adistance. |
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Answer» The EXAMPLES of contact force are : any WORK we do, FRICTIONAL force, normal force |
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| 37. |
What do you mean by room control automation? |
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Answer» for controlling LIGHTS, blinds, heating, VENTILATION and air conditioning. ... For all questions, starting with the planning, implementation, OPTIMIZATION and support of your buildings The touch panel DIGICONTROL R4D.RT7 is used in all areas of MODERN building and room automation this is meaning |
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| 38. |
At temp do the reading of celcius and Fahrenheit scale coincide |
| Answer» YES ,these COINCIDE at -40.. | |
| 39. |
The speed of light in a vacuum is 3.00 x10^8 m/s.calculate the time taken by iy to travel the dustance of 6*10^14m |
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Answer» We KNOW that...... |
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| 40. |
Which planet has largest number of natural satellites or moons? |
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Answer» The planet with the most MOONS in the Solar SYSTEM is Jupiter, with a TOTAL of 63 confirmed moons |
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| 41. |
There are three forces 4n 5n & 10 n can their resultant be equal to zero |
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Answer» Resultant of FORCES is zero if the vectors FORM a TRIANGLE. |
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| 43. |
Two bodies are thrown simultaneously from a tower with same initial velocity where they will meet |
| Answer» PHYSICS can STILL not DECIDE that. | |
| 44. |
Formula for divergence of gradient of scalar potential v is |
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Answer» The FORMULA is the formula of DIVERGENCE of gradient of SCALER potential v is the formula |
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| 45. |
fluid is a substance which offers no resistance to change of select one: a. pressure b. flow c. shape d. temperature. e. volume |
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Answer» HEY FRIEND..............HERE IS UR ANSWER........... SHAPE is the answer
HOPE IT HELPS............PLS MARK IT AS BRAINLIEST!!! |
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| 46. |
For making karaoke what to do with lower frequency band limit & upper frequency band limit |
| Answer» U can CONTROL the UR voice and BAND voice WID that. | |
| 47. |
The standard electrode potential is measured by ______.a.electrometerb.voltmeterc.pyrometerd.galvanometer |
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Answer» ELECTROMETER is the CORRECT. MARK IT AS BRAINLIEST |
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| 48. |
Which body A,B,C has the highest velocity?Why??? |
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Answer» HOPE it is a DISPLACEMENT - TIME GRAPH.. Then.. A has |
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| 49. |
Draw VT graph which represents A CAR MOVING ALONG A BUSY ROAD. |
| Answer» U NEED VELOCITY and TIME INTERVALS for that. | |
| 50. |
Two men together start a journey in the same direction.they travel 9 kmph and 15 kmph respectively.after travelling for 6 hours the man travelling at 9kmph doubles his speed and both of them finish the distance in the same time.how many hours will they take to reach their destination |
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Answer» Let the TOTAL distance to be covered equals to S. |
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