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. |
Disadvantage of heating effect of electricity |
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Answer» Loss of every is one DISADVANTAGE of HEATING EFFECT of electricity |
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| 2. |
Using the curve of angle of deviation and incidence how do you infer that the angle of minimum deviation is unique for a given light |
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Answer» For a PARALLEL GLASS slab, |
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| 4. |
How can waling on earth be an example of thirld law of motion] |
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Answer» Newton's 3rd law of motion STATES that: |
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| 5. |
Which has the low ignition temperature kerosene and lpg and why? |
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Answer» Kerosene has LOW ignition temperature because it BURNS very EASILY |
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| 6. |
Which defect of eye can be cured with two lens with different curvature perpendicular to each other? |
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Answer» ASTIGMATISM is the EYE DEFECT. |
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| 7. |
Which has the higher energy blue light or violet light? |
| Answer» VIOLET LIGHT has the HIGHER ENERGY | |
| 9. |
Rajeev went from delhi to chandigarh on moter bike. odometer of bike read 4200km at start of trip and 4460km at the end of the trip.If Rajeev took 4hour 20minutes to complete his trip,find the average speed |
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Answer» This is the SOLUTION for your Q. |
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| 10. |
Head on collision of two particles in schrodinger equation |
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Answer» I hate to disappoint you, but it's REALLY the same as Schrödinger’s equation for anything else. |
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| 11. |
When a rubber band is stretched,it changes its shape, then why do we say it a solid? |
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| 12. |
When an agarbatti is lighted fragrance reaches all the corners of room name the process involved? |
| Answer» DIFFUSION. is the PROCESS INVOKED | |
| 13. |
A body moves in a circular path of radius 20 cm if it completes two and half revolution alog circular path find distance and displacement of body |
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Answer» DISTANCE is 3.14m/314cm and DISPLACEMENT is 0.4m/40cm PLZ Plz Plz MARK as BRAINLIEST |
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| 14. |
While playing tug of war, Preeti felt that the rope was slipping through her hands. Suggest a way out for her to prevent this. Thanks |
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Answer» She can just roll the ROPE around her HAND for attaining a better GRIP |
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| 15. |
39 ossicillation in 9 seconds |
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Answer» So what. .......... |
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| 16. |
Why work is done on an object moving with uniform circular motions zero? |
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Answer» In uniform circular motion the body is constantly under the influence of centripetal force that is DIRECTED TOWARDS centre of the circle and the body always tends to FOLLOW a tangential path to the circle that is the displacement of body is perpendicular to the centripetal force...... |
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| 17. |
when you want to type an ?a ? for example think of ?archery ? and just tap dot-dash?the nock of an arrow and its shaft |
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| 18. |
to optimize for speed you shouldn't use too many webfonts and you should minimize the number of _____. |
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Answer» HEYA MATE here's the answer Variants PLEASE MARK as BRAINLIEST |
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| 19. |
Can someone help me with this?? |
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Answer» Application of refraction of light is a tool which helps us in understanding the basic concepts about the refraction of light and its application. First of all let us understand the basics of refraction of light and then we will study about application of refraction of light. Generally refraction of light occurs when the waves travel s from one medium to another medium, with some refractive index and it generally enters other medium at oblique angle. There are various phenomenon’s associated with the refraction. Refraction of light has a major scope in case of optics and in the field of technology. For example, lens uses the basics of refraction of light to form an image of an object for various purposes, such as magnification. The other example is prism which also uses refraction to form a spectrum or band of colors from incident ray of light. In optical illusion and mirage, refraction generally plays a big role. Various scientific things have been explained with the help of refraction. Day to day phenomenon’s are also explained with the help of refraction. One example which we are most familiar is ‘Twinkling of stars’. This phenomenon is explained in this way. The atmosphere which is blanket of earth actually consists of various LAYERS of varying densities. It is because of change in temperature and pressure. The phenomenon is when the ray o f light enters into the layers of continuously increasing densities they are being refracted because of change in medium. In this COMPLETE process, ray of light follows curve path and hence it reaches to us. But because of the wind and currents, the DENSITY of the layer continuously increases and hence in turn the density of each layer goes on changing from layer to layer. And because of this at very small interval of time, the position of the image of START keeps on changing, and hence it ultimately produces the twinkle effect. This is all based on the concepts of refraction. The same principle can be used to explain the apparent sunrise or sunset. The basic concepts of refraction are used to describe the complete process. The other applications of refraction are as follows: 1) Spear fishing, in which spear fisherman use a smart trick to catch the prey. The spear fisherman generally aims at a point below where the fish seems to be. This is because light actually changes its direction from one medium to another of different densities. This change is basically known as refraction. 2) Bending of stick in water. In water, a stick engrossed in water generally appears bent and small when viewed at an angle from above. This is also because the rays of light actually travel from water medium to air medium and hence in bend away from the NORMAL at the surface. 3) A coin appears raised in water. The same explanation exists. From above discussion we have seen that refraction of light has been used to understand the scientific facts in almost all fields. This is all about application of refraction of light |
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| 20. |
I need examples of divergent beams |
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Answer» Examples of divergent BEAMS: |
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| 22. |
What is the cause of atmospheric pressure an effect |
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Answer» Hey MATE here's the answer |
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| 23. |
Derive v=u+at by non graphical method. |
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Answer» ANSWER: |
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| 24. |
Which layer of the atmosphere do communications satellites orbit |
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| 25. |
Two vector of magnitude 10 each have magnitude of 10√3 of their difference find angle b/w them |
| Answer» ANGLE between them is 60 DEGREES. U can CHECK. | |
| 26. |
Mention any two situations where more pressure is helpfull |
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Answer» In cooking FOOD in pressure COOKER and pressure inside tire of VEHICLES and BICYCLE wheel. |
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| 27. |
A solid cylinder of radius r, length l is recasted into a hollow cylinder of inner radius r and outer radius 2r keeping the volume constant. The ratio of electrical resistance of solid cylinder to hollow cylinder assuming that the resistivity remains constant throughout the process is |
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Answer» First part of radius is 2 r and length is l so you find the VOLUME of hollow cylinder by using FORMULA okk and after in second part the radius is 2r and length is constant okk so in TWO parts you find the volume of hollow cylinderical by using formula after then the two volume which you are calculate both will ADDED okk |
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| 28. |
A train travels at a speed 50km/hr for 0.5 hr at ,30km/hr for next 0.26 hr and then 70km/hr for next 0.76 hr . what is the average speed of the train? |
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| 29. |
Find the odd one out : Mass , velocity , weight , time |
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| 30. |
What is the frequency of photon , whose momentum is 1.1×10^-23? |
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Answer» Given: The momentum of a photon is 1.1×10^-23 To find: What is the frequency of photon , whose momentum is 1.1×10^-23? Solution: Let "p" be the momentum of the photon we use the formula, p = mc where, m = MASS of the photon Now consider, E = mc² ....(1) where E is the energy of photon and c is the speed of light. E = h × f ......(2) where f is the frequency of the photon. using equations (1) and (2), we get, mc² = h × f ⇒ m = hf/c² .......(3) we have, p = m × c substituting the value of m (3) in above equation we get, p = hf/c² × c p = hf/c ⇒ f = pc/h c = 3 × 10^8 and h = 6.623 × 10^{-34} given, p = 1.1 × 10^{-23} ∴ f = (1.1 × 10^{-23}) × (3 × 10^8) / (6.623 × 10^{-34}) upon solving, we get, f = 0.498 × 10^{19} ∴ f = 4.98 × 10^{18} Hz. Hence the frequency of a photon. |
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| 32. |
What is velocity? Tell |
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Answer» HEY BUDDY.!!! HERE'S THE ANSWER... _____________________ ▶️ VELOCITY is ratio of displacement done to the time taken , i.e => Velocity ( v ) = Displacement / time ⏺️ SI UNIT ( m / s ) ▶️ It is a VECTOR quality , as it has MAGNITUDE as well direction , It can be in negative too. HOPE HELPED. JAI HIND !!! :-) |
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| 33. |
Sky wave propagation is based on |
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Answer» Skywave PROPAGATION is based on the reflection of ELECTROMAGNETIC WAVES. When the electromagnetic waves hit the ionosphere containing ions are REFLECTED BACK towards the surface of the earth. Thus through this the skywave propagation takes place. |
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| 34. |
Two identical spheres,having unequal and opposite charges are placed at a distance of 90 cm apart. After touching them mutually,they are again separated by same distance.Now they repel each other with a force of 0.025N.Find the final charge on each of them. |
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Answer» Itdoycuofooyxuxo o6sdyo fu FG HSHV fhg fjgfbtity ysyu duhh tuy HH |
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| 35. |
In which gear in bike should we be in in order to drive in 20-30 km per hour |
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Answer» Answer: Explanation: |
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| 36. |
Why do pesenger in a bus tend to fall backward when it starts suddenly. |
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Answer» DUE to INERTIA of our body. In CASE of bus there are two SITUATIONS 1: when the bus STARTS we go backwards because our state of inertia is tend to be at rest the bus starts immediately and our body's state of inertia is disturbed the result we go backwards. 2: when the bus pulls the break. Our body moves forward this is because when the bus is moving our state of inertia is tend to be moving but because of an immediate break the inertia is disturbed the reason we move forward... |
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| 37. |
Calculate the velocity of a bodywork mass 0.5 kg when it has a linear momentum of 5Ns |
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Answer» Since F = m(vf - VI)/ (tf - TI ) |
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| 38. |
Why is it possible to row a boat in water but not pass through a wooden fence |
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Answer» Because BOAT is in the shape of streamlined body to cut through the water easily and it is also hollow so DUE the archimedes PRINCIPLE the less DENSITY will float on water.... But in case of fence its not hollow and not in the streamlined shape the person will drown immediately if he steps on a floating fence.. |
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| 40. |
What is range of numerical aperture of optical fiber? |
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Answer» Typical VALUES of fiber core size RANGES from 50 to 100 micrometers and Numerical aperture VALUE ranges from 0.20 to 0.29. For a 50/125 micrometer multimode fiber the numerical value SPECIFIED generally is 0.20 with a tolerance of +/- 0.015. |
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| 41. |
What is acceleration of the body if it starts from rest and travels at 92 km/hr in 5 min? |
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Answer» Initial velocity = 0km/h Final velocity = 92 km/h Time = 5 min We will convert initial and final velocity into m/s and time into seconds u= 0km/h = 0 m/s v = 92km/h =25.55 m/s Now USING FIRST Equation of Motion v=u+at 92=0+a*300 92/300=a a=0.30 m/s/s |
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| 42. |
What happen when ammeter is connected in parallel combination? |
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Answer» It has very low resistance to ENSURE the CORRECT measurement of CURRENT in the circuit. If it is connected in parallel across any LOAD then all current in circuit will choose lower resistive path (i.e ammeter) to cause it's circuit to be damaged. HENCE it is used in series. |
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| 43. |
What effect on null point of potentiometer with increase in driver cell? |
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Answer» Answer: Explanation: No EFFECT as at NULL POINT, ZERO current FLOWS through the wire.Hope you understood. |
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| 44. |
Given A=0.3i+0.4j+Ck, calculate the value of C if A is a unit vector. |
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| 45. |
Name the structure found in clinical thermometer which prevent a back ward of mercury |
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Answer» The STRUCTURE i s KINK which PREVENT the BACKWARD of MERCURY |
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| 46. |
What displacement must be added to displacement 25? |
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Answer» I did not UNDERSTAND the QUESTION you have ASKED |
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| 47. |
To make a p-type semiconductor germanium is doped with gallium |
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Answer» Thank you for this QUESTION. PLEASE find the answer below: To MAKE a p-type semiconductor germanium is doped with Gallium and Boron. This is because both; Gallium and Boron are TRIVALENT and trivalent elements are needed to ATTAIN a p-type semiconductor germanium |
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| 48. |
the algebric sum of changes in potential around any closed loop in a circuit involving resistors and cells in a closed loop is |
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Answer» Explanation: Hello Mate ✌️☺️Question:-the algebric sum of changes in potential around any CLOSED loop in a CIRCUIT INVOLVING resistors and cells in a closed loop is........, Answer:-In accordance with KIRCHHOFF's second law i.e. Kirchhoff's voltage law (KVL), the algebraic sum of all the potential differences in a closed electric circuit or closed loop that CONTAINS one or more cells and resistors is always equal to zero. This law is popularly called as the law of conservation of voltage. hope it's helpmark as brainliest ❤️ |
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| 49. |
If a car covers 2/5th of the total distance with V1 speed and 3/5th distance with V2,then what is the average speed |
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Answer» LET the total DISTANCE be x. time taken to COVER 2/5x with speed V1=2/5x/V1 and time taken to cover 3/5x remaining with speed V2=3/5x/V2 . AVERAGE speed = distance travelled/time taken=x/2x/5V1+3x/5V2 = 1/2/5V1 +3/5V2= 5/(2/V1+3/V2) = 5V1V2/2V2+3V1 is the answer .Hope it helps you... |
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| 50. |
Volume of a block having length,breadth and thickness |
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Answer» Answer: |
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