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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. |
Two wire having resistance 4ohm and 2 oh are connected with battery in series .the current of 2 A is flowing in first wire. How much current in the second wire. |
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| 2. |
What happens to the resistance of a conductor of its temperature is increased? |
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Answer» In CONDUCTORS ,the RESISTANCE RAISES. |
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| 3. |
Conclusion for spherical mirrors |
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Answer» It helps US in many WAYS and they are concave and convex MIRROR both are very useful for us like in SIDE mirror of bike and car and in solar cooker etc |
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| 4. |
Which charge will be produced when an ebonite rod is rubbed with a fur |
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Answer» Hey mate |
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| 5. |
A train of length 50m is moving with a constant speed of 10m/s caluculate the time taken by the train to cross an electric pole and bridge of length 250m |
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| 6. |
Give reason : sound travels faster through solids than through liquid and gases |
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Answer» SOUND travels faster in solid because the have LESS intermolecule space when compare to LIQUID and GAS |
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| 7. |
What is meant by uniform acceleration |
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Answer» The acceleration is SAID to be UNIFORM when equal changes in VELOCITY take place in equal INTERVALS of time... |
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| 8. |
Girl a girl of mass 50 kg is standing on pencil heels each of area of cross section 1 cm square and Elephant of mass 5000 kg and foot area 250 CM square is standing on the floor full stop which one will exert more pressure and what is the difference between the pressure exerted by the girl and the elephant the elephant |
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| 9. |
size of image of an object formed by a mirror having a focal length of 20cm, is observed to be reduced to 1/3rd of its size. at what distance of the object has been placed from the mirror? what is the nature of the image and the mirror ? |
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Answer» CASE 1:- m=-1/3(in case of CONCAVE mirror) |
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| 10. |
State one way to obtain a greater moment of force about a given axis of rotation |
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Answer» To OBTAIN a greater MOMENT of force about a given AXIS of ROTATION the force should be applied at the maximum distance from the axis and by increasing the magnitude of the force. |
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| 11. |
What is the SI n CGS unit of density |
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Answer» ⇒⇒⇒⇒ YOUR ANSWER ↓↓↓↓. |
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| 12. |
Newton-second is the unit of |
| Answer» DIMENSIONALLY equivalent to the momentum unit kilogram metre per SECOND (kg. m/s). ONE NEWTON second corresponds to a one-newton force APPLIED for one second | |
| 13. |
When do we say that a body is at rest and when do we say that it is moving |
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Answer» When the body is at the fixed position we SAY that body is in rest |
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| 14. |
Newton's second laws of motion example |
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Answer» A SMALL mass.. Such as a bullet may kill a person when fired from a gun... |
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| 15. |
How to determine the focal length of a convex lens? |
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Answer» Hey MATE!!! |
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| 16. |
What is pascal's law ? |
| Answer» PASCAL's law is a PRINCIPLE in FLUID mechanics that states that a pressure change occurring anywhere in a confined INCOMPRESSIBLE fluid is transmitted throughout the fluid such that the same change occurs everywhere | |
| 17. |
Describe the chipko movement? |
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Answer» Hii Mate |
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| 18. |
The power of the lens is -2.5D.calculate the focal length of the length? |
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Answer» FOCAL length=1/power =-1/2.5 =-2/5*100=-40cm |
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| 19. |
Explain Newton's second law of motion ... |
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Answer» Newton's second LAW of motionpertains to the behavior of objects for which all EXISTING forces are not balanced. The second law states that the ACCELERATION of an object is dependent upon two variables - the net force acting upon the object and the MASS of the object. |
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| 20. |
the relation between time 't' and distance 'x' is t=axt square +bx where a and b are constants. the acceleration is? |
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Answer» ACCORDING to me this is the answer plz CORRECT me if wrong comment if correct and sorry for my HANDWRITING |
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| 21. |
jupiter is at distance of 824.27 million km from Earth it's angular diameter is measured to be 35.72" calculate the diameter of Jupiter |
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| 22. |
Why gold foil used in Rutherford experiment |
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Answer» Because GOLD is very malleable and thin so the rays will PASS easily through it.and RUTHERFORD requires a very thin layer |
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| 23. |
A train travels 20 km at a uniform speed of 60 km per hour and the next 20 km/h at uniform speed of 80 km per hour calculate its average speed |
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Answer» AVERAGE SPEED=Total distance÷total TIME In case-1 distance=20km speed=60km/h time=20km÷60km/h=1/3h In case -2 distance=20km speed=80km/h time=20km÷80km/h=1/4h Total distance=20km+20km=40km Total time =1/3h+1/4h= 7/12h Average speed= 40km÷7/12h=68•571km/h(approximate ANSWER). |
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| 24. |
What is the commercial unit of electrical energy? Represent it in terms of joules |
| Answer» KWH (KILOWATT HOURS ) 1KWH= 3600000 JOULES | |
| 25. |
an artificial stelite is movi ng in a circular orbit of radous 42250 km .calculate its speed if it takes 24 hours to revolve arond the earth? |
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Answer» Hope it helps |
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| 26. |
Define floatation and laws of floatation |
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Answer» When any boat DISPLACES a weight of water equal to its own weight, it floats. This is often called the "principle of flotation": A floating OBJECT displaces a weight of fluid equal to its own weight. ... One common point of CONFUSION REGARDING Archimedes' principle is the MEANING of displaced volume. |
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| 27. |
A car starts from rest and moves along x axis with constant acceleration 5m/s^2 for 8 seconds. if it continues with constant velocity, what distance will the car cover in 12 seconds since it started from rest? |
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Answer» S=0.5at^2+vt v=at v=5*8=40m/s |
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| 28. |
A body weight 10 kgs on the equater.at the poles. it is like to weight.oion is.10kgs.less than 10kgs. more than 10kg.,0 |
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Answer» It is LIKELY to weigh more than 10 KG since net gravity on EQUATOR is least while on POLES is most |
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| 29. |
An object will continue to accelerate until |
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| 31. |
How is nanometre related to angstorm |
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Answer» HEY there! ANGSTORM is the unit of length.It is often used to measure sizes of atoms, moleclus and lenghts of chemical bonds. MANOMETER is a unit of length in METRIC system. 1 manometer is 10^6m; 1 Ângstorm is 10^10 m. Therefore, 1nm =10 Â Hope it helps u!! |
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| 32. |
scissor for cloth may have blades longer than the handles but shears for cutting metals have short blades and long handles explain why? |
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Answer» Soo that we don't GET any harm n far AWAY from blades as the blades are MUCH SHARPER then scissors blade... |
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| 33. |
A train starts from rest and acceleration uniform at the rate of 5m/s for 5sec calculate the velocity of train in 5sec |
| Answer» SORRY MATE i am WEAK in PHYSICS | |
| 36. |
Let the period of revolution of a planet at a distance r from star .prove that if it was at a distance of 2R from the start, it's period of revolution will be 8 T |
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Answer» Hii mate!! |
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| 37. |
Find the a particle moves 3m north then 4m east and finally 6m south calculate the displacement |
| Answer» REFER to the FIGURE :- Here FD is the DISPLACEMENT = UNDERROOT of 4square + 3square = 5 | |
| 38. |
the magnitude of the resultant of two vectors of magnitude 3 and 5 is 7 find the angle between the vectors what will be the angle made by the resultant with the direction of the vector of magnitude 5 |
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Answer» HAPPY Here is ur ANSWER. Hope it helps And TAN ALPHA = 3/5 |
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| 39. |
Why are lubricants used in machine?i mark as brainlist |
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Answer» LUBRICANTS are used in machines to reduce friction which cause wear and TEAR and life if MACHIN.. so lubricants reduce wear and tear and INCREASE durability of machine |
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| 40. |
A ball is dropped from a height if it takes 0.2 seconds to cross the last 6 m before hitting the ground then find the height from which it was dropped |
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Answer» answer is 10H .............. |
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| 41. |
What is the equation for position-time relation |
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Answer» HELLO there.... Here is your answer S = UT +1/2at^2 |
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| 42. |
An electron moving with a velocity of 5 × 104 m/s enters into auniform electric field and acquires a uniform acceleration of 104 m/s2in the direction of its initial motion. |
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Answer» V=u+at |
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| 43. |
when one end of an iron rod is heated its other end also become hot soon. Name the processes by which Heat flow in the rod |
| Answer» CONVENTION is the ANSWER of the QUESTION BRO | |
| 44. |
a motorcyclist drives from A to B with a uniform speed of 30 km per hour and return from place B to a with uniform speed of 20 km per hour find his average speed |
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Answer» Let the distance TRAVELLED be d |
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| 45. |
Question no. 15 plx fast answer it |
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Answer» Hey dear here is your answer..... |
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| 46. |
Explain with one example that frictional force is proportional to the normal force |
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Answer» Friction ACTS between 2 surfaces and is tangential to both the surfaces. This tangential interaction (frictional force) is proportional to the normal forcebetween these 2 surfaces (according to an empirical law). ... However, thenormal force COULD be CAUSED by a rope on a drum, for EXAMPLE |
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| 47. |
Distinguish between uniform and non uniform motion |
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Answer» The former represents the MOTION in which the MOVING BODY covers the same distance in the same TIME, but in the case of latter, the body TRAVELS unequal distances at the same time. |
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| 48. |
A train starts from a station and moves with a constant acceleration for 2 minutes. If itcovers a distance of 400 m in this period, find the acceleration. |
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Answer» S=ut+1/2at^2 |
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| 49. |
The body centered cubic packing arrangement is found in the crystal of |
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Answer» In crystal of NACL BODY CENTERED cubic packing ARRANGEMENT is found. |
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| 50. |
Hii frnds ..What is the difference between Balanced and unbalanced force ? no spam :) |
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Answer» Hey frnd... |
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