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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 451. |
Two particles, each of mass m, are a distance d apart.To bring a third particle, with mass 2m, from far awayto a resting point midway between the two particlesthe work done by an external agent is given by:(1) 4Gm2/d (2) –4Gm2/d(3) 8Gm2/d2(4) –8Gm2/d2 |
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Answer» MIDWAY between the two pritcles the work DONE by an EXTERNAL agent is GIVEN by |
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| 452. |
Wirte the current flowing thriugj the device be the same? |
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Answer» Answer: A diode is a DEVICE that allows current to FLOW in one direction but not the other. This is achieved through a built-in electric field. A diode is a device that allows current to flow in one direction but not the other |
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| 453. |
What is the relation between viscosity and temperature |
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Answer» Answer: The gas viscosity will increase with TEMPERATURE. According to the KINETIC theory of gases, viscosity should be proportional to the SQUARE ROOT of the absolute temperature, in practice, it increases more rapidly. Explanation: hopefully this will HELP you |
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| 454. |
Section-A (Physics) (6) swer type questions: "gv. Derive an expression for kinetic energy with mass m and final velocity v starting from rest |
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Answer» Explanation: ? i mean |
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| 455. |
Write down the list of base units and derived units with its symbols by referring to the table given in the PDF and convert the following units with the given values. i) 10 Metre to cm and Kmii) 5o Kg to giii) 2000 Seconds to minute and houriv) 5 Km to cm and meterev) 1000g to kgvi) 1 hour to minute and seconds |
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Answer» i don't KNOW the answer |
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| 457. |
Define Light Year. Express one light-year in kilometres |
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Answer» ANSWER:The light-year is a unit of length used to express astronomical DISTANCES and is EQUIVALENT to about 9.46 trillion kilometres (9.46×1012 km) or 5.88 trillion miles (5.88×1012 MI). ... Unit system: astronomy UNITS Unit of: length Astronomical units: 63241 au; 0.3066 pc Imperial & US units: 5.8786×1012 mi Explanation: |
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| 458. |
The dew point temperature does not depend on the amount of vapour in the air(1 Point)TrueFalse |
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Answer» its TRUE |
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| 459. |
A simple pedulum set into vibrations and left untouched evetually stop why? |
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Answer» Explanation: the fact of being impossible to SEE, or of not being noticed: The bits of GOLD in the sand were small to the POINT of invisibility (= so small that they almost could not be seen). |
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| 460. |
Object distance and image distance of a lens are -60cm and -20cm respectively, then the magnification of lens will bea) -0.33b) +3.0c) +0.33d) +4.0 |
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Answer» Explanation: they were the FIRST of the two men bikers in HINDI in a WORLD record of a world of the DAY before they were born |
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| 461. |
Find out the kinetic energy of a car of mass 3000 kg moving with a constantvelocity of 60 km/hr. |
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Answer» The KINETIC energy is = 400 k J
Explanation: The kinetic energy is K E = 1 2 m v 2
The MASS is m = 2000 k g
The VELOCITY is v = 20 m s − 1
So, 1/2 . 2000.2² = 40000j = 400kj |
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| 462. |
Find the time period of a simple pendulum of length 120 cm at a place where g = 10 m/s2 . (Take π = 3.14) |
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| 463. |
If error in measuring diameter of a circle is4%,the error in radius of the circle would be |
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Answer» Answer: 2% DIAMETER is double of radius we know ERROR in diameter is 4% so error of radius will be half of diameter so error of radius will he 2% |
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| 464. |
Please tell me answer. I am in troublepleased |
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Answer» denser sunlight Atmosphere rocks decomposition |
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| 465. |
What is velocity and acceleration??? |
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Answer» Answer: Velocity is a vector QUANTITY and has both a MAGNITUDE and a DIRECTION. The direction is the same as the the displacement direction from which we defined the velocity. The acceleration (a) of the object through the domain is the CHANGE of the velocity with respect to TIME. |
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| 466. |
Sliding is replaced by rolling by using ball bearings in a. Dynamos b. Axles of vehicles c. Shafts of motors d. All of these |
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Answer» d. All of these please FOLLOW |
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| 467. |
how much time does a stone take to reach on the surface of the earth when dropped from height 20m and what will be its acceleration due to gravity after 3 seconds |
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Answer» Answer: 321cmHOPE it will HELPFUL for you THANKS .. |
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| 468. |
Evaluate integration 0 tends alpha 4pi(m/2piKT)^3/2 e^-mc^2/2kT c^2 dc |
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Answer» Maxwell velocity DISTRIBUTION formula let m/2πkt = x And SOLVE |
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| 469. |
The amplitude of 100 db sound is |
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Answer» Answer: Loudness is MEASURED in decibels (dB). As decibels rise, loudness quickly increases. A 10-dB rise is a 10-time leap in loudness. That means an 80-dB sound (a vacuum cleaner) is 10 TIMES louder than a 70-dB sound (a TELEPHONE ringing) and 100 times louder than a 60-dB sound (normal conversation). PLEASE MARK me as brainliest... I hope my answer helped you |
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| 470. |
Tell me answer I m in trouble |
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Answer» Explanation: 17. F= ma F = 100(10×0.2) |
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| 471. |
Calculate the volume of wood if mass - 13.60kg and density - 0.68 g/cm3 cube |
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Answer» Answer: 0",8,?0?,./#.:839?88:*8:8"99"*9*:9#*8:/8 Explanation: A ariRuFzkfzjvzjfzjfzigzj"*8",8"98 |
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| 472. |
Mount Everest is 8848 m above the sea level.find the acceleration due to gravity at this height.the value of acceleration due to gravity at Earth's surface is 9.8 m/s^2and the radius of the earth is 6400 km |
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Answer» Answer: Thus, the ACCELERATION due to GRAVITY on the TOP of Mount EVEREST is =9. 773m/s2. Explanation: please MARK me brainlist |
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| 473. |
What is physics?? only for ravikantsinha740 otherwise I will report others . |
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Answer» Answer: The scientific study of NATURAL forces such as LIGHT sound heat etc is known as physics. hope it HELPS. |
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| 474. |
Fluid friction depends upon a. Nature of fluid b. Shape of the moving object c. Speed of the moving object |
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Answer» Explanation: If the object moves with HIGH speed, there is a higher tendency of relative motion between the fluid LAYERS and hence, the fluid exerts a GREATER frictional force. ... Hence, fluid FRICTION depends on all three, the speed and shape of the object and the nature of the fluid. |
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| 476. |
At t = 0, particle starts and moves in a circular path of radius 'R'. If tangential acceleration of the particle is 'a' then find the time when the total acceleration vector makes an angle 45° with tangential acceleration vector. |
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| 477. |
Modes of Communication are continually changing. What are some of these changes? Say which one change you like best and why? Question 2 Select one of the following:- [300 words |
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Answer» the USE of internet and mobile PHONES is a best example of this CHANGES |
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| 478. |
Which will come down with the greater speed ?a) fat sheet of foilb) crumbled ball of foilc) both of thesed) none of these |
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Answer» b.Crumbled ball of foil By crumpling the aluminum into a ball, the volume of the OBJECT DECREASES but the mass remains the same. ... As AIR applies some resistance on falling SHEET of aluminum as WELL as crumpled ball but the resistance to the motion of crumpled ball through the air decreases that makes it to fall faster than the sheet of aluminum foil. Mark As Brain List :) |
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| 479. |
state the laws of conservation of linear momentum A Ball of mass 100g moving with a velocity 10m/s is stopped by a boy in 0.2s Calculate the fore applied by the boy to stop the ball |
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Answer» i have SHARE U ATTACHMENT u can SEE |
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| 480. |
a child is looking into a small polished hemispherical bowl sees erect image of himself at 21cm from the bowl. he turns the bowl then image is seen at 7cm from bowl. the radius of curvature of bowl will be. |
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Answer» Answer: Answer Step by step solution by experts to help you in DOUBT CLEARANCE & SCORING excellent marks in exams. check-circle Text Solution Open Answer in App Solution 1v−μ−R=1−μ∞⇒v=−Rμ So, image will be formed at a distance of R/μ below C. |
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| 481. |
What is the difference between speed and velocity?? |
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Answer» Answer: Speed is the time RATE at which an object is MOVING along a path, while velocity is the rate and direction of an object's movement. ... For example, 50 km/hr (31 mph) describes the speed at which a CAR is traveling along a road, while 50 km/hr west describes the velocity at which it is traveling. |
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| 482. |
Draw the diagram and explain sign convention for reflection by spherical mirror ? |
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Answer» Explanation: Answer: Herbivores have teeth that are highlyspecialized for eating PLANTS. Because plant matter is often difficult to break down, the MOLARS of herbivores are wider and flatter, DESIGNED to GRIND food, and aid in digestion. ... Elephants are herbivores, and their incisors are UNLIKE those found in other animals. please follow |
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| 483. |
Rohan is walking towards west.He takes three turns while walking. all at an (internal) angle of 45degree towards right right and left. What directionis he facing now? |
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Answer» Answer: |
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| 484. |
What is the value of shunt resistance that allows 20% of the main current through a galvanometer of 99 Ω ?(a)20.75Ω (b)24.75Ω (c)28.75Ω (d)30.75Ω |
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Answer» b)24.75Ω is the right answer Explanation: pls MARK me as the BRAINLIEST |
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| 485. |
To remove the achromatic aberration the combination of lenses should be? |
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Answer» <STRONG>Answer: Chromatic aberration can be eliminated by combining a strong lens of low-dispersion (CROWN) glass with a weaker lens MADE of high-dispersion (flint) glass. Such a COMBINATION is said to be achromatic. |
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| 486. |
Calculate the resistance of a copper wire 1.0 km long , 0.50 mm diameter ,if the resistivity of copper is 1.7 × 10⁻⁸ Ω m. |
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| 487. |
A rocket is travelling vertically upwards. Three vertical forces act on itThe thrust acts upwards and is equal to 100 000N.The weight acts downwards and is equal to BO OOON .What is the air resistance force acting on the rocket when it is travelling upwards at constantspeed?A 20 000N downwardsB 20000 N upwardsс180 000 N downwardsD 180000N upwards |
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Answer» Answer: A ROCKET is travelling vertically UPWARDS. Three VERTICAL forces act on it The thrust acts upwards and is equal to 100 000N. The weight acts downwards and is equal to BO OOON . What is the air resistance force acting on the rocket when it is travelling upwards at constant speed? A 20 000N downwards с 180 000 N downwards D 180000N upwards |
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| 488. |
A physical quantity X is related to four measurablequantities a,b,c,d as follows P=a^2b^3c^5/2d^-2 Thepercentage error in a b, c, d is 1% 2% 3% and 4%respectively What is percentage error in X |
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Answer» Answer: |
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| 489. |
How can you prove that there is gap present in between the molecules |
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Answer» Explanation: When a solute (LIKE sugar or salt) is added to a definite volume of water, volume of water doesn't INCREASE, only mass of liquid increases. Hence it proves that solute MOLECULES have ENTERED gaps PRESENT between water molecules. |
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| 490. |
A series RL circuit with r=100 ohm and L= 20H has a DC voltage of 200V applied through a switch at t= 0 find a) the equation of the current and voltage across the different elements. b)the current t=1 Sec. |
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Answer» Explanation: 1). There are 1, 800 members each paying an annual SUBSCRIPTION of Rs. 200. Rs.8,000 were in arrears for 2013-14asonApril 1,2014. 2). On 31-03-2015 the rates were prepaid to June 2015, the charge paid every year being Rs.24,000 3). There was an OUTSTANDING telephone bill for Rs.1400 on 31-3-2015 4) Outstanding sundry EXPENSES as on 31-2- 12014 totalled Rs.2800 5) Stock of stationery 31-03-2014 was Rs. 2,000 on 31-03-2015 it was Rs.3,600. 6) On 31-03-2014, BUILDING stood at Rs.4,00,000 and it was subject to depreciation @ 2.5% p.a. Read more on Sarthaks.com - https://www.sarthaks.com/1055742/prepare-income-expenditure-account-balance-sheet-ending-2015-from-following-information |
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| 491. |
Q.29 Rotating vector that represents quantity varying sinusoidally with which quantity is known as phasor O A. Time O B. Length O C. Place O D Both (B) and (C) |
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Answer» OPTION (A) TIME. I'm not very SURE about it hope it HELPS you |
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| 492. |
What does physical education teacher us |
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Answer» Explanation: Physical Education is an education which brings improvement in HUMAN performance with the help of physical activities. Physical activities RANGE from simple walking to jogging, running, SPRINTING, hopping, JUMPING, climbing, throwing, pushing, pulling, KICKING, etc. |
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| 494. |
Hlo dear friendsadolescence is period of stress and strain why plz explain in long answer |
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Answer» Answer: Adolescence has been considered, almost by DEFINITION, a period of HEIGHTENED stress (Spear, 2000) due to the many changes experienced concomitantly, including PHYSICAL maturation, drive for independence, increased salience of social and peer interactions, and BRAIN development (Blakemore, 2008; Casey, Getz, & Galvan |
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| 495. |
2) The orbit of a planet revolving around a star is ……a) circular b) linear c) towards the focal point d) elliptical |
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Answer» Answer: Answer is OPTION DExplanation: HOPE this helps you✌️Please like it♥️And ALSO mark as brainliest ☺️ |
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| 496. |
A falling body is in uniform motion or non uniform motion. |
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Answer» A FALLING body is non uniform motion. Explanation: PLEASE mark as BRAINLIEST :) |
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| 497. |
Oxygen is an example of liquid state true or false please answer fast |
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| 498. |
How may types of solutions are there |
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Answer» there are TWO TYPES of solution Explanation: solute solvent |
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| 499. |
The self inductance of a inductive coil is 0.4H the current in the coil is decreasing at the rate of 2A per second what is the emf induced in the coil |
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Answer» FANTASY vs Reality What I have LEARNED? Explanation: Fantasy vs Reality What I have learned? |
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| 500. |
2) explain laws of limiting friction. |
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Answer»
Here is your answer....
The LAWS of limiting friction are: (1) The direction of limiting friction force is always OPPOSITE the direction of motion. (2) It always ACTS tangential to the TWO SURFACES. (3) It is dependent on the material and the nature of the surfaces in contact. (4) It is independent of the shape and area. Hope it will be helpful for you. Thanks for reading. Mark as brainliest. |
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