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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. |
if a particle of charge q is moving with velocity v along the y axis and the magnetic b is acting along BZ x is used the expression a physical 2qb into b to find the direction of force if found on its |
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| 2. |
What is the SI unit of force |
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Answer» The SI UNIT of force is the NEWTON, SYMBOL N. The base units relevant to force are: The metre, unit of length — symbol m. The kilogram, unit of MASS — symbol kg. The second, unit of time — symbol s.HOPE IT HELPS YOU..... |
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| 3. |
Name the atom that is referred to in the direction big one standard metre_____ |
| Answer» ATOM BOMB and NUCLEAR bomb..... | |
| 4. |
acceleration is the rate of change of the velocity of an object with respect to time.For example, when a vehicle starts from a standstill (zero velocity, in an inertial frame of reference) and travels in a straight line at increasing speeds, it is accelerating in the direction of travel. If the vehicle turns, an acceleration occurs toward the new direction and changes its motion vector. For example, when a vehicle starts from a standstill (zero velocity, in an inertial frame of reference) and travels in a straight line at increasing speeds, it is accelerating in the direction of travel. If the vehicle turns, an acceleration occurs toward the new direction and changes its motion vector. |
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| 5. |
If inclination theta varies from 0 to 90° than |
| Answer» TION: An ANGEL whose measure than o. LESS than 90. Is called ACUTE angle | |
| 6. |
Motion of any object only under the influence of gravity is called____________ |
| Answer» GRAVITATIONAL MOTION | |
| 7. |
Give the ratio in which hydrogen and oxygen are presend in water by volume |
| Answer» 2:1Explanation:as there are 2 atoms of hydrogen and 1 ATOM of OXYGEN | |
| 8. |
6. The velocity of a particle is given by v = bt. The distance covered by the particle in time t will be -(1) bt?(2) 2bt?(3) 1/2 bt?(4) ore |
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Answer» 2btExplanation:Here we use SIMPLE diffrential EQUATION for distance and for the t-->0, the time gets neglected in FRACTION of MOTION and depends upon the path(x).Hope u get it... |
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| 9. |
the velocity of a particle falling freely from a height h is given by v is equal to under root 2gh examine the dimensional balance of the equation where the is acceleration due to gravity |
| Answer» TION:v 2 −u 2 =2gxv=18 kmphg=1000 cm/s 2 x=120 cmWe need to BRING all UNITS in CGS units.So, v=18 KMPH= 60×6018×10 5 seccm =(500) cm/secu 2 =v 2 −2gx =(500) 2 −2×1000×120 =250000−240000u 2 =10000 (cm/sec) 2 u=100 cm/secu=1 m/sechope it's helpfulthank you | |
| 10. |
Where the weight of body is maximum? At Higher point from earth surface1At at a depth from earth surface2.On the surface of Earth3 |
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Answer» The WEIGHT of the BODY is MAXIMUM at the POLES. on the Earth's surface.Hope this HELPS you !! |
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| 11. |
2)Kilogram is the SI unit of _______ |
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| 12. |
प्रश्न 4: परावैद्युत पदार्थ किन्हें कहते हैं ध्रुवीय एवं अध्रुवीय परावैद्युत पदार्थों में अवार को उदाहरण सहित स्पष्ट स्पष्ट करें। |
| Answer» TION:PLS POST your QUESTION in ENGLISH. | |
| 13. |
अ बॉय वॉच हैविंग गन शॉट सेशन में ट्रेनिंग कैंप ऐसोनेंस यीशु टैबलेट ही फैल बैकवर्ड |
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Answer» tion:Can you PLEASE write the answer in ENGLISH because I DINT understand the QUESTION |
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| 14. |
Separate the subject and the predicate in the following sentences 1. The earth revolves around the sun.2. Nature is the best friend of man.3. The sun is hot.4. Does Ritika sing a sweet song ?5. Honesty is the best policy.6. He is waiting for his father.7. Regularity and punctuality brings success in life.8. Never tell a lie.9. Is Rozy a good singer ?10. An empty vessel sounds much.11. Children like sweets and toys.12. Hard labour never goes in vain.13. A stitch in time saves nine.14. The singing of birds attracts all.15. This small, pretty doll is very costly.16. A laborious and sincere student does well in life.17. Borrowed garments never fit well.18. The beautiful flower soon faded away.19. They made me Captain.20. We elected him Chairman of the committee.21. Don't pluck the flowers.22. Go ahead.23. Stand up . please tell |
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Answer» lcjljc LLC hl58hl58yoyMFzifurz'f'xf'iufl lmylhf'ud'fi if |
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| 15. |
Diffusion process is ----------process |
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Answer» Diffusion processes are CONTINUOUS-time, continuous-state processes whose sample PATHS are everywhere continuous but NOWHERE DIFFERENTIABLE. They arise in many natural phenomena and in some sense are generalized versions of the Brownian motion.Explanation:"If you LIKE my answer please follow me Just." |
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| 16. |
How many parces are theire in one year |
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Answer» 5Explanation:vhjnkllll vjllmmml GALLOP hjll |
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| 17. |
Draw a ray diagram and determine the nature and focal length of a spherical lens which forms three times magnified real image of an object placed 16 cm from the lens. |
| Answer» HOPE this CLEARS your DOUBT!!!! | |
| 18. |
Bullets at the rate of 400 bullets per second with a (Ans. 1.6 kg ms4. A machine gun has a mass of 20 kg. It fires 30 gspeed of 400 ms-1. What force must be applied tothe gun to keep it in position ?If 45° with(Ans. 4800 N) |
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Answer» ear I don't know your question's Answer Properly Because I am a small girl dear. PLEASE Please Please Please Mark me as BRAINLIEST ANSWER , Follow me and SAY thanks Also Please dear. I am your Cute , LITTLE and naughty small sister.Lots of love and CARE for you from your little sister. I Pray for you , for all My Friends , Sisters and Brothers. God Bless them Always and Don't punish them or harm them but Anyone doing wrong with anybody or they harm anyone then only God Punish them. BYE Bye take Care. Be safe. |
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| 19. |
A capalitor of capitance C= (2.0 +0.1) MF charged to a voltage V= (20 + 0.2) volt. What will be the charge Q on the capacitor ? UseQ = CV6 |
| Answer» C = (2.0 + 0.1 ) = 2.1 V= (20+0.1) = 20.1 THEREFORE Q =CV6I.e 2.1× 20.1×6 = 253.26.......... So Q = 253.26 | |
| 20. |
Identify bouble displacement reaction among the following |
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Answer» A double displacement REACTION occurs when part of two ionic compounds are exchanged making two new compound. A characteristics of a double displacement reaction is that there are two as REACTANTS and two DIFFERENT compound are a product. |
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| 21. |
Which of the following wave has the same value for both RMS and average |
| Answer» TION:jrkkrrjjrjrjejejejejeieieieiieieeueu | |
| 22. |
3. Two billiard balls of mass 50 g moving in opposite directions with speed of 16 ms -1 collide andrebound with the same speed. What is the impulseimparted by each ball to the other ?11 |
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Answer» n :Two billiard balls of mass 50G moving in opposite directions with speed of 16 m/s collide and REBOUND with same speed . What is the impulse imparted by each ball on one other.Given :Mass of two balls = 50 gVelocity of two balls = 16 m/sTo find :The impulse imparted by the two balls.Solution :First let us convert the mass from g to kg.Since, we know that :1 g = 1000 kg.50 g = (50/1000) kg==> 50 g = 0.05 kgHence, the mass of the ball in kg is 0.05 kg.We know the FORMULA for Impulse,i.e,[Note :- Impulse is equal to the rate of CHANGE of momentum]Where :-m = Mass of the bodyv = Final Velocityu = Initial VelocityHere :-m = 0.05 kgv = 16 m/su = (-16) m/s[Note : The initial velocity will be taken as negative coz the body is moving in a opposite direction]Now , using the above formula and substituting the values in it, we GET :Hence, the impulse imparted by the two bodies is 1.6 kg m/s. |
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| 23. |
Which is the unit of measurement of attenuation in optical fiber |
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Answer» the MEASUREMENT of ATTENUATION - ANSWER - DB / KM |
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| 24. |
write three equation of uniformlyaccelwrated motion relating the initial velocity (u), final velocity (v), timw (t), acceleration (a) and displacement |
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Answer» S = ut +1/2at^2Explanation:to FIND the DISTANCE this EQUATION PLAYS role |
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| 25. |
Apart from velocity name 2 other quantities which are vector |
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Answer» displacementaccelerationforce |
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| 26. |
A wire of length 0.3 metre moves with speed of 20 metre/second perpendicular to the magnetic field of induction 1wb/m^2 . calculate the induced emf. |
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| 27. |
Write the difference between gravitational force and magnetic force |
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Answer» 1 Answer. Gravity is RELATIVELY weaker, is a result of mass and acts on all things that have mass. Magnetic FORCE is relatively stronger, is a result of INTERACTION of photons(charged PARTICLES) and acts on things that contain iron(ferrous) or have a CHARGE on them.Explanation: |
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| 28. |
Two point's p and q are separated by 100m The speed of a car at p is 20m/s and at q is 10m/s Of acceleration is constant then how much distance the car cover further to come to rest a)30mb)33mc)60m(Solution) |
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Answer» b.33 ................... |
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| 29. |
Tick (~) the true statements and cross (X) the false ones. 1. Nearsightedness can be corrected with a convex lens.[ ]2. Night blindness can lead to total blindness.[ ]3. A virtual image is not formed by rays of light.[ ]4. The ray of light which reflects is called the normal.[ ]5. In myopia, the light rays become focused behind the retina.[ ]6. The blind spot contains only rod cells[ ]Please if any one knows please answer |
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Answer» LLOW ME AND MARK IT AS BRAINLIEST |
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| 30. |
Solve this....with explanation |
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Answer» I tried really hard to solve but didn't GET 2 the point...SORRY...maybe the option c.have ü GOT |
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| 32. |
1w=1j/s plz solve in method |
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Answer» The nucleoid (meaning nucleus-like) is an irregularly shaped region within the prokaryotic cell that contains all or most of the genetic material.[1][2][3] The chromosome of a PROKARYOTE is circular, and its length is very large compared to the cell dimensions needing it to be compacted in order to fit. In contrast to the nucleus of a eukaryotic cell, it is not surrounded by a nuclear membrane. Instead, the nucleoid FORMS by condensation and functional arrangement with the help of chromosomal ARCHITECTURAL proteins and RNA molecules as well as DNA supercoiling. The length of a genome widely VARIES (generally at least a few million base pairs) and a cell may contain multiple copies of it. |
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| 33. |
How will you convert D.C Dynamo into A.C Dynamo? |
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Answer» I guess it is not possible.Because it is only possible to CONVERT ac to dc by : The slip rings USED in the AC GENERATOR can be removed and split rings can be replaced instead. Now, AC generator uses concave magnets, change them and lastly remove the coil and REPLACE it with armature instead. The AC generator will start functioning as a DC generator.Explanation:Hope it helps !!!Please do marks as BRAINLIEST !!! |
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| 34. |
What is difference between DC and ac identify the source of these current |
| Answer» DC MEANS direct current . A current that always flow in the same direction through an electrical DEVICE .The source of direct current is generally a cell or DC generator. AC means alternating current which CHANGES its direction after regular INTERVALS of time .The source of an AC generating current is an AC generator. | |
| 35. |
What is the conclusion of the lab report on measurement of viscosity of water |
| Answer» VISCOSITY LAB Report ConclusionIt is DETERMINED that honey has the highest viscosity and the slowest time while water has the LOWEST viscosity and the fastest time. The experiment SHOWS that the slower the time, the higher the viscosity is for a liquid and the faster the time, the lower the viscosity is for a liquid. | |
| 36. |
Acceleration of car which is moving constant velocity is |
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Answer» Since the car is MOVING with a constant velocity, so CHANGE in the velocity of car is ZERO i.e. Δv=0. ACCELERATION of car a=ΔtΔv=0 m/s2. |
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| 37. |
Two resistors of resistances 10ohmand 15ohm are connected parallel. Find the effective resistance of their combination. |
| Answer» 6 is the EFFECTIVE resistanceExplanation:because Reff in PARALLELS is: R1R2/R1 + R2 | |
| 38. |
find the dimentional formula of a/b in following equation P=a t/2bx where p is pressure t is time and x is distance |
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Answer» tion:EQUATE both sides with respective DIMENSIONAL formulas and OBTAIN the value of a/b |
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| 39. |
4. A man walks 30 m. towards north, then 20 m towards east and in the last 30/2 m. towards south west. The dis-placement from origin is(1) 10 m towards west(2) 10 m towards east(3) 60,2 m towards north west(4) 60/2 m towards north northור( |
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Answer» A person moves 30 m NORTH then 20 m east than 30 root 2 METER SOUTHWEST. In triangle XZO, OZ is resultant from origin. Hence, The position of person from origin is 10 m west. |
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| 40. |
The force of gravitation between two bodies doesnot depend on * |
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Answer» The GRAVITATIONAL force of attraction between any two objects does not DEPEND UPON. Solution : Gravitational force does not depend upon size and shape of objects. |
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| 41. |
Perform an activity to demonstrate the property of inertia of rest? |
| Answer» EMPTY glass tumbler. Put a piece of THICK smooth card over its mouth. Put a COIN on top of it. ... Coin was at rest and will remain at rest when the card will be flicked DUE to its state of INERTIA at rest. | |
| 42. |
समीकरण v2=u2+2asकी व्युत्पति कीजिए। |
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Answer» here's your ANSWEREXPLANATION:PLEASE MARK me as BRAINLIEST |
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| 43. |
A 5 cm tall object is placed perpendicular to principal axis of a convex lens of focal length 10 cm. The distance of the object from the lens is 15 cm. The nature, position and size of the image is |
| Answer» EXPLANATION:The lens formula is given by Given: -f=10cmu=15 cm For a convex lens,U= negativev=positivef = positiveso, modifying the lens formula we haveSubsituting the value,v= 30 cmNature of the IMAGE is real and inverted.Position of the image is 30 cm on the other SIDE of the lens as the objectFor the size of the image,The image size is 10 cm | |
| 44. |
Find the dimentional formula of a/b in following equation P=a t/2bx |
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| 45. |
03. What is the angle between the vector and X - axis? |
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Answer» If the VECTOR is POINTING ALONG the positive x-axis, then the angle is 0˚ (0 radians). If it is pointing along the negative x-axis, then the angle is 180˚ (π radians). |
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| 46. |
Define Physics?????????? |
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Answer» entific study of natural FORCES such as light, SOUND, heat, ELECTRICITY, pressure, etc.प्रकाश, ध्वनि, ताप, विद्युत, दाब आदि प्राकृतिक शक्तियों का वैज्ञानिक अध्ययन; भौतिक विज्ञानplease mark my answer as brainliest FOLLOW me |
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| 47. |
Find the difference travelled by a body in 5 minutes if it travels with a uniform speed of 27 |
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Answer» T=300secS=20m/sD=stD=20×300D=6000mD=6kmExplanation:PLEASE MARK me as BRAINLIST ANSWER |
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| 48. |
explain how does net dipole moment is developed in non polar dielectric when placed in an external field ? |
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Answer» In the PRESENCE of an external field, the CENTRES of positive CHARGES are displaced in the direction of external field while the centres of NEGATIVE charges are displaced in the opposite direction. ... The induced dipole moment is added up giving a net dipole moment to the dielectric in the direction of ELECTRIC fieldExplanation: |
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| 50. |
Give an examples where the velocity of an object is zero but the deceleration is not zero |
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Answer» When we start a CAR from rest initial velocity is zero but ACCELERATION is not. 2. When we throw a BALL vertically UPWARDS, at MAX height velocity is zero but acceleration due to gravity is acting.Explanation:please mark as brainlient |
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