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. |
If voltage drops by 50 %by how much the current will increase or decrease |
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Answer» By ohm's law we KNOW voltage is directly PROPORTIONAL to current since voltage is drop by 50% current also DROPPED by 50% |
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| 2. |
in physics how to determine that the velocity given in the question is initial or final? Explain in Hindi |
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Answer» When it is WRITTEN that the object START with velocity so it is initial velocity and if the object is stop it is final velocity. |
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| 3. |
Derive thw e value of 'g' from newtons gravitationallaw |
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Answer» G=GxM/R^2 |
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| 4. |
Cubical vessel of height how height 1 m is full of water minimum work done in taking water out from the vessel will be |
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Answer» No WORK will be DONE because COS0 is EQUAL to 90° HENCE no work done |
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| 5. |
Collect information about respiratory organs of 10 organisms |
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Answer» 1 FISH - gills slits. |
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| 6. |
If work is a scalar quantity then w= fs where f is force and force is a vector quantuty |
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Answer» No, (f) is vector quantity no doubt but (s) is ALSO a vector quantity. |
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| 7. |
PHYSICS ⤵️⤵️Q:- what is a slip ring? ✨NEED ANSWER ASAP! |
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Answer» A ring in a dynamo or electric motor which is attached to and rotates with the SHAFT, passing an electric current to a CIRCUIT via a fixed brush pressing against it. |
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| 8. |
Comparison between am and fm with reference to noise |
| Answer» COMPARISON between am and FM | |
| 9. |
A boy short pencil pencil at both x and then uses its block him to complete an electrical circuit will the |
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Answer» It can COMPLETE the circuit because graphite of the pencil is a GOOD CONDUCTOR. |
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| 10. |
A surface is rubbed tu make it smoother. What effect will this have on friction? Give reason |
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Answer» The friction of the object WOULD be less. the reason is this that the rubbing action will cause the SURFACE to become wear out and MAKE it less ROUGH THUS less friction |
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| 11. |
when you push a large stone and it does not move but you applied energy. you become tired and energy is utilised state the energy conversion only. |
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| 12. |
The total energy of a particle executing simple harmonic motion is |
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Answer» In simple harmonic motion when a particle is DISPLACED to a position from its mean position, then its kineticenergy gets converted into potentialenergy and vice-versa. Hence, TOTAL energy of a particle REMAINS constantor the total energy in simple harmonic motion does not depend on DISPLACEMENT x. |
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| 13. |
On removing 12.5 × 10^18 electrons from a metal sheet , the charge of metal sheet is? |
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Answer» The charge of metal sheet is positive |
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| 14. |
The value of energy for which Schrodinger equation can be solved is called |
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Answer» I THINK EIGEN VALUE |
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| 15. |
By using a process called echolocation to analyze the echoes of the high-pitched sounds they produce, bats can determine not only the distance to an object, but they also can determine its shape and size and the direction in which it is moving. |
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Answer» So what we have to do in this QUESTION?? |
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| 16. |
An object A collides head on elastically with stationary object B .the object A will recoil with maximum speed if (e=1)a) Mb>>Mab)Ma>>Mbc) Ma=Mbd) can't be predicted |
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| 17. |
Pleaseeeeeeeeeeee tellllllllllllllll meeeeeeeeeeee nowwwwwwwww.......... |
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Answer» ANSWER is 1:3 hope it helps mark as BRAINLIEST |
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| 18. |
A domestic bulb has 5A fuse. How many bulbs of rating 100W, 220W. Can be safely used in this circuit? Justify your answer |
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| 19. |
Can we give certain values to magnitude of the field at every point in the magnetic field |
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Answer» Familiar with: |
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| 20. |
Why woods are weak under direct compression perpendicular to the grain |
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Answer» Wood as a building MATERIAL are ALSO affected specifically by ... timber strength when PRESSED perpendicular to the grain under DIFFERENT ...... Furthermore, there is no DIRECT way of. |
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| 21. |
Does the property of attracting iron fillings remain same for all parts of a bar magnet |
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Answer» No, it is only APPLICABLE on the TIP of the BAR magnet. |
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| 22. |
A photon of light travels and falls on a metal and gets absorbed into it but before it travels a distance of |
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Answer» When we're very young, we have a very simple idea about light: the world is EITHER light or dark and we can change from one to the other just by flicking a switch on the wall. But we soon learn that light is more complex than this. |
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| 23. |
This Q really requires a good hold on physics |
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Answer» Answer EXACT NAHI h...jo iske aas PAS ho dekh lo WAHI hona chahiye...cmnt me answer bta dena..sahi hai ya nahi..okk |
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| 24. |
Can three vectors which are not coplanar may produce equilibrium |
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Answer» YES Which MAY be MUTUALLY PERPENDICULAR to each other. |
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| 25. |
Formula for specific heat capacity |
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Answer» ✔✔ HELLO mate ✔✔ here's your answer Specific Heat Capacity Formula. The specific heat capacity of a SUBSTANCE is the amount of heat REQUIRED to raise ONE gram of the substance by one DEGREE Celsius. Water, for example, has a specific heat capacity of 4.18 . This means to heat one gram of water by one degree Celsius, it would require 4.18 joules of energy ¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤ ¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤ Hope it helps you |
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| 26. |
The relative density of pure gold is known to be 19.3 . A customer buys a bangle , weighing 41.495 g from a jeweller . To check that the bangle is made of pure gold , the customer weighs the bangle in water where it is found to weigh 39.345 g . Do appropriate calculations and help the customer to decide as to whether the bangle he bought , is made of pure bangle or not . |
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Answer» The GDP growth rate slowed down to 6.1% in 2009. In 2006, the COUNTRY's trade contributed to around 24% of the GDP from 6% in 1985. According to Goldman Sachs, India's GDP in current prices may overtake France and Italy by 2020, RUSSIA, GERMANY and UK by 2025 and Japan by 2035. It is also predicted that Indian economy will be the third LARGEST after US and China by |
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| 27. |
What is the formula to calculate the displacement for nth sec derivation |
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Answer» Displacement in the nth second,we r talking about.suppose accleration is a and the initial velocity is u. |
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| 28. |
For maximum extension with given load for a wire with same value of young's modulus of elasticity, which is true? |
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Answer» Is it true that a material with a higher Young's MODULUS is more elastic than a material with a lower Young's modulus? If so, why? |
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| 29. |
A particle is projected with a speed . The coefficient of friction between the particle and the hemi-spherical bowl is . Then, the acceleration of the particle is |
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Answer» A hemispherical bowl of radius R is rotated about its AXIS of symmetry which is kept vertical. A small block is kept in the bowl at a position where the radius makes an angle 0 with the vertical. The block ROTATES with the bowl without any slipping. The FRICTION coefficient between the block and the bowl surface |
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| 30. |
Applications of optical fibres |
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Answer» Optical FIBERS are widely used in fiber-optic communication, which permitstransmission over longer distances and at higher DATA rates than other forms of WIRED and wireless COMMUNICATIONS. They are also used to form sensors, and in a VARIETY of other applications. |
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| 31. |
How to find the wavelength of a wave? |
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Answer» If you want to calculate the wavelength of a wave, then all you have to do is plug the wave'sspeed and wave's frequency into the equation. Dividing SPEED by frequency gives you THEWAVELENGTH. For example: Find the wavelength of a wave traveling at 20 m/s at a frequency of 5 Hz. |
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| 32. |
State some of the characteristic of chemical effects of electric current |
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Answer» Chemical Effect Of Electric Current. ... The passage of an electric current through a CONDUCTING liquid CAUSES chemical reactions. The RESULTING effects are called chemical effects of currents. The process of depositing a layer of any desired metal on another material, by means of ELECTRICITY, is called electroplating |
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| 33. |
a boy rolls a rubber .The ball travels a short distance before coming to rest .To make the same ball travel longer distance before coming to rest, he may? |
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Answer» Cotton cover the BALL with a piece of CLOTH .spread a carpet on the wooden SURFACE |
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| 34. |
Plzz solve!!!!!!!!!!! |
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Answer» HOLA User__________________ Here is Your Answer...!!! ___________________________ ⭐Actually WELCOME to the concept of IMPULSIVE FORCE.. ⭐Basically we know that the impulse force "J" on a OBJECT is given by .. ⭐J = F . DT ⭐so after solving we get as .... |
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| 35. |
Assumptions made to get bernoulli's equation from euler's equation |
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Answer» The following ASSUMPTIONS must be met for this Bernoulli equation to apply: |
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| 36. |
A stationary wheel starts rotating about its own axis at uniform angular acceleration 8rad/sec2 .The time taken by t to comlete 77 rotations is |
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Answer» Θ = (ωi × t) + 0.5αt² |
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| 37. |
A wheel starting from rest is uniformly accelerated at 2 rad/s2 |
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Answer» In physics, POTENTIAL energy is the energy possessed by an OBJECT because of its POSITION relative to other objects, stresses WITHIN itself, its electric charge, or other factors. |
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| 38. |
Two foil strain gages a and b are glued to a high strength chegg |
| Answer» SORRY I THINK your QUESTION is INCOMPLETE... | |
| 39. |
Explain laser emissionExplain laser emission |
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Answer» A laser is a device that emits light through a process of optical AMPLIFICATION based on the STIMULATED EMISSION of ELECTROMAGNETIC radiation. ... Alternatively, TEMPORAL coherence can be used to produce pulses of light with a broad spectrum but durations as short as a femtosecond ("ultrashort pulses"). |
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| 40. |
A body A of mass 3kg and a body b mass 10kg are dropped simultaneously from a height 14.9m (a) calculate their momenta (b) their potential energy (c) their ke ...when they are 10m above the ground |
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Answer» A message is a discrete unit of COMMUNICATION intended by the SOURCE for consumption by some recipient or group of recipients. A message MAY be delivered by various means, including COURIER, telegraphy, carrier pigeon and electronic bus. A message can be the content of a broadcast. An INTERACTIVE exchange of messages forms a conversation. |
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| 41. |
A resistance of 0.05 ohm have a circuit 3 ampere flowing in it . Calculate the potential difference |
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Answer» V=IR |
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| 42. |
A spring stores 1 j of energy for a compression of 1 mm.The additional work to.Be done.To compress it further by 1mm |
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Answer» 1j is the ANSWER because we KNOW we have USE 1j to COMPRESS 1mm |
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| 43. |
An object is droppef from heigh h the kinetic and potential energy in the ration 3 : 4 |
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Answer» What is the QUESTION? |
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| 44. |
A ray of light falls on a plane mirror with an angle of incidence equal to 60 degree. The angle of reflection is? |
| Answer» 60 DEGREE only CAUSE angle of incidence = angle of reflection. | |
| 45. |
A right pyramid having rectangular base of dimensions 15m * 6m and height of 10m will have capacity of? |
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Answer» Newton's Second Law |
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| 46. |
A rectangular loop of sides 15 and 10 cm carrying a current of 1a, is placed with its longer side parallel to long straight wire carrying a current of 2a placed at a distance of 2 cm. The net force experienced by the loop is |
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Answer» Hey buddy, |
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| 47. |
A planet of mass m is moving around a star of mass m and radius r in a circular orbit of radius r .The star abruptly shrinks to half its radius without any lose of mass .What will be there in the orbit of the planet |
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Answer» Newton's Second Law |
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| 48. |
A satellite loading in space is subjected to three angular velocities |
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Answer» A rigid body ROTATING with UNIFORM angular SPEED about a fixed axis POSSESS kinetic energy |
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| 49. |
A magnetic compass is brought close to a current carrying solenoid . What will hapen to the compass needle |
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Answer» ◆This is because the compass needles work as a small bar MAGNET, so when this MAGNETIC NEEDLE is brought near ANOTHER magnetic property (solenoid) surrounding then the like poles will repel, there by the needle GETS deflected. |
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