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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.
| 551. |
The length of a wire is 2m and its area of cross section is 2m2. If the resistivity ofthis wire is 4 × 10-8 ohm-metre . Find the resistance of the wire |
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Answer» HOPE these ATTACHMENTS HELP you!!! |
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| 552. |
For a motion with uniform velocity, write expression for 'v' in terms of 's'. |
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| 553. |
Write about on the factors disreepting national integration. |
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Answer» Answer: The FACTORS which are affecting national integration or unity in INDIA are:
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| 554. |
Rohan has three resistors, each of resistance 4 Ω. Draw a diagram and showthe working of how he would join these three resistors to get an equivalent resistance of 6 Ω |
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Answer» ANSWER:this buj Explanation: Resistance of each RESISTOR R=9Ω Two resistor connected ACROSS A and B are connected in parallel. EQUIVALENT resistance across A and B R AB = R+R R×R = 2 R = 2 9 =4.5Ω This equivalent resistance is connected in SERIES to another resistor R. So equivalent resistance across A and C R AC =R AB +R=4.5+9=13.5Ω |
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| 555. |
Floating or sinking when compared to water.solutionvolumemixturerelative density |
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Answer»
If a substance's relative DENSITY is less than 1 then it is less dense than the reference; if GREATER than 1 then it is denser than the reference. ... If the reference MATERIAL is WATER, then a substance with a relative density (or specific gravity) less than 1 will float in water.
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| 556. |
Define term constitution |
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Answer»
the basic principles and laws of a NATION, state, or SOCIAL group that DETERMINE the powers and DUTIES of the government and guarantee CERTAIN rights to the people in it. b : a written instrument embodying the rules of a political or social organization.
please follow |
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| 557. |
What is the function of an earth wire ? Why is it necessary to earth metallic appliances ? |
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Answer» The metallic BODY of ELECTRIC appliances is CONNECTED to the earth using earth wire so that any leakage of electric current is transferred to the ground. This PREVENTS any electric shock to the user |
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| 558. |
2N/mm22) 1equal to@ 1 kgf/ mm3 @ 1 kgf/ m3@ l paIMPa |
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Answer» don't KNOW okkkkkkkkkkkkkkk |
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| 559. |
4. Two objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 ms-1and 1 ms-1. respectively |
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Answer» Answer: Answer: 1.165 m/s Explanation: Mass of first objects, m₁= 100 g = 0.1 kg Mass of SECOND object, m₂ = 200 g = 0.2 kg Velocity of m, before collision, v₁= 2 m/s Velocity of m₂ before collision, V₂ = 1 m/s Velocity of m₁ after collision, V3 = 1.67 m/s after collision = V4 Velocity of m2 According to the law of conservation of momentum: Total momentum before collision = Total momentum after collision + m₂V2 = M₁V3+ M₂V4 → 0.1 * 2 + 0.2*1 = 0.1 * 1.67 + 0.2 * V4 → 0.4 0.67 + 0.2 * V4 → V4 = 1.165 m/s Hence, the velocity of the second object becomes 1.165 m/s after the collision. |
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| 560. |
2) 1 N/mm2 equal to ? |
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Answer» Answer: 1 newton / square millimetre =1 newton / square millimetre =1000000 pascals"Definition: In relation to the BASE unit of [PRESSURE] => (pascals), 1 Newton Per Square Millimeter (N/mm2) is equal to 1000000 pascals, while 1 Megapascals (MPa) = 1000000 pascals." |
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| 561. |
A spring is tied to one end and other and is free. By applying the force spring is stretched when force is removed the spring exert the force in opposite direction. Name the force. Also write the factor on which it depends. |
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Answer» Answer: Hi buddy Explanation: Here is ur Answer The spring force is CALLED a restoring force because the force exerted by the spring is always in the OPPOSITE direction to the displacement. This is why there is a NEGATIVE sign in the Hooke's law EQUATION. Pulling down on a spring stretches the spring downward, which RESULTS in the spring exerting an upward force. |
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| 562. |
How are safety belts helpful in preventing any accident |
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Answer» Answer: A SEATBELT expands the STOPPING force REQUIRED to decelerate the rider ACROSS their body. ... This stops the body from hitting the steering column or windshield of a high-speed car, which could easily result in injury or even death. Explanation: hope it HEPS u!!! mark me brainliest... |
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| 563. |
11. A person throws a ball vertically upwards with velocity 20 m sfrom the top of a building of heighth and simultaneously throws another ball with same velocity in downward direction. If the ratio of the time taken by two balls to reach the ground is 5: 2, then the height of the building is m. (Take g = 10 m ) (a)800/9(b)9/800(c)400/3(d)3/400No solution available on internet... |
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Answer» option (a) is correct 800/9 m Explanation: t₁ /t₂ = 5/2 Since final velocity at ground is same v = -20 + 10t₁ = 20 + 10 x t₂ -2 + t₁ = 2 + t₂ t₁ - t₂ = 4 5/2 x t₂ - t₂ = 4 t₂(5/2 - 1) = 4 t₂ = 4x 2/3 = 8/3 s for SECOND ball s = ut + 1/2 gt² h = 20 x 8/3 + 1/2 x 10 x 64/9 = (480 + 320)/9 = 800/9 m |
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| 564. |
A train accelarates Uniformly brom 36kmh-1 to 72kmh-1 in 10 seconds. Define acceleration, what do you mean by uniform motion |
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Answer» Final Velocity = 72 km/hr Time taken = 10 seconds To FIND: Distance travelled. Conversion : CONVERT UNIT of velocity from km/hr to m/s. 1. 36 km/hr = 36 × 5/18 = 10 m/s 2. 72 km/hr = 72 × 5/18 = 20 m/s |
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| 565. |
Why it is difficult to open the door if the force is applied closer to the hinges of the door? |
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Answer» Answer: We cannot open or close the door by applying force at the HINGES. Because the TORQUE of force at the hinges is ZERO as perpendicular distance is zero. HENCE there is no rotational motion. Explanation: plz mark as brainliest if it was helpful |
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| 566. |
Explain india is a land of unity in diversity. |
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Answer» Answer: India is a land of “Unity in diversity”. The high mountain ranges, VAST seas , large river-irrigated lands, countless rivers and streams, DARK forests, sandy deserts, all these have ADORNED India with an exceptional diversity. Among the people there are numerous races, castes, creeds, RELIGIONS and languages. |
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| 567. |
How are safety belt helpful in preventing accident |
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Answer» Answer: SEATBELT expands the stopping force REQUIRED to DECELERATE the rider across their body. This stops the body from hitting the steering column or windshield of a high-speed car, which COULD easily result in injury or even death |
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| 569. |
What is the meaning of electrostatic forces |
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Answer» The electrostatic force is an ATTRACTIVE and repulsive force between PARTICLES are caused DUE to their electric charges. The electric force between stationary charged body is CONVENTIONALLY KNOWN as the electrostatic force. It is also referred to as Columb's force. |
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| 570. |
(a) Which of the three is travelling the fastest? (b) Are all three ever at the same point on the road? (c) How far has C travelled when B passes A? (d) How far has B travelled by the time it passes C? |
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Answer» Answer: a) I GUESS c b) no c)7.5 km d) 3km approx Explanation: This answers are not ACCURATE |
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| 571. |
What is the value of the shunt resistance that allows 20% of the main current through a galvanometer of 100 Ω ? |
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| 572. |
Density of water is 1 g/cm³ . In S I unit the density is; |
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Answer» Explanation: DENSITY of WATER in cgs unit is 1g per cm CUBE. Si unit will be 1000 kg per m cube. |
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| 573. |
What are the values of angle of incidence ∠i and angle of reflection ∠r for normal incidence oflight on a plane mirror ? |
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Answer»
When the LIGHT ray is incident normally on plane mirror surface it means the angle between mirror surface and light ray is 90°. This means the angle between incident light ray and normal is 0º which is CALLED angle of incidence. As angle of incidence is 0° angle of refelection is ALSO 0°. ( By law of reflection of light) |
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| 574. |
What is the speed of light to fall on Earth? |
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Answer» Answer: 299,792 KILOMETERS PER SECOND |
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| 575. |
Explain briefly two commonly used applications of the internet |
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Answer»
The Internet has many IMPORTANT applications. Of the various services AVAILABLE via the Internet, the three most important are e-mail, WEB browsing, and peer-to-peer services . E-mail, also known as ELECTRONIC mail, is the most widely used and successful of Internet applications.
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| 576. |
ANSWER IT1. Define Sound. 2. What are Vibrations? 3. What is the use of Larynx? 4. Where is the vocal cords located in our body? 5. Define Medium. |
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Answer» Answer: vibrations that TRAVEL through the air or another MEDIUM and can be heard when they reach a person's or animal's ear."LIGHT travels faster than SOUND"hope it's help you!!! |
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| 577. |
Distinguish between speed and velocity. |
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Answer» Answer: SPEED is a scalar quantity. Velocity is a vector quantity. Speed is always positive. Velocity can be positive or negative. Speed is the distance TRAVELLED Velocity is the displacement of BODY in |
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| 578. |
Two vectors A and B are given in the component form as A = 5i cap+ 7j cap -4k cap and B = 6i cap + 3j cap +2k cap Find A+B, B +A, A- B, B-A |
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| 579. |
2 capacitors each of capacitance 4 uF are connected in series & a third capacitor of capacitance 4 uF is connected in parallel with the combination, then the equivalent capacitance of the arrangement is |
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| 580. |
Why is the voltage in the single-phase power supply network called "AC voltage"? |
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Answer» Answer: An ALTERNATING current (a.c.) flows in an electrical CIRCUIT that is ENERGIZED with an alternating voltage. This voltage is ONE that reverses its sense of direction in a regular manner, and this is caused by the method by which it is generated |
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| 581. |
(a) Which of the three is travelling the fastest? (b) Are all three ever at the same point on the road? (c) How far has C travelled when B passes A? (d) How far has B travelled by the time it passes C? |
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Answer» Photosynthesis is a process USED by plants and other organisms to convert light energy into CHEMICAL energy that, through cellular respiration, can later be RELEASED to fuel the ORGANISM's metabolic activities. |
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| 582. |
Assuming the density of air to be 1.295 kg /, findthe fall in barometric height in mm of Hg at a heightof 107 m above the sea level. Take density of mercury= 13.6 x 10 kg / |
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Answer» Answer: I THINK this question is WRONG I can't UNDERSTAND this question |
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| 583. |
SOLVE THE PHYSICS1/1000=1/10000000=1/100000=1/10000000000=1/100=1/10=1/10000=1/10000000=1000000=100=10=1/10=1/10-2=1/10-4= |
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Answer» 10³ 10⁷ 10⁵ 10¹⁰ 10² 10¹ 10⁴ 10⁷ ANSWER IS OKKKK |
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| 584. |
Explain the rules for making ray diagram. (Class 10) |
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Answer» Explanation: . Pick a point on the top of the object and draw two incident rays traveling towards the mirror. Using a straight edge, ACCURATELY draw ONE ray so that it passes exactly through the focal point on the way to the mirror. Draw the SECOND ray such that it travels exactly PARALLEL to the principal axis. |
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| 585. |
Define resistance? Obtain an expression for three resisters connected in series. |
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Answer» By Ohm's LAW, the potential differences across the three RESISTORS will be, V1=IR1,V2=IR2,V3=IR3. If Rs be the equivalent resistance of the series combination, then on applying a potential difference V across it, the same CURRENT I must flow through it. Therefore, V=IRs. @Samu ❤️ |
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| 586. |
A man move NE for 20√2 km/hr , turns at 53⁰ WN and move at 25 km/hr . Find change in velocity |
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Answer» Answer: REFER the attachmentExplanation: A MAN move NE for 20√2 km/hr , turns at 53⁰ WN and move at 25 km/hr . FIND change in velocity |
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| 587. |
Ishan tumne nhi batya tum kah se ho |
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Answer» Hey, you can USE the message BOX instead of posting questions and wasting points. And... it's DISTURBING also And....privacy ISSUES too |
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| 588. |
How can we protect the articles made of iron from corrosion and formation of rust? |
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Answer» Answer: One way to keep iron from corroding is to keep it PAINTED. The layer of paint prevents the water and oxygen NECESSARY for rust formation from coming into contact with the iron. As long as the paint REMAINS intact, the iron is protected from CORROSION. Other STRATEGIES include alloying the iron with other metals.
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| 589. |
Identify the solute and solvent in tincture of iodine |
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Answer» Answer: In the TINCTURE of iodine, the SOLVENT is ALCOHOL and water while the SOLUTE is iodine. |
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| 590. |
Define1)Hypotonic Solution4) prokaryotic cell3) Membrane Biogenesis2)Vacuoles5)Gene |
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Answer» Answer: the solution in which PARTICLES SWELL up. Prokaryotic cells are old TYPE of cells with not well DEFINED nucleus KNOWN as nuclei. Explanation: follow |
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| 591. |
Explain all 5 types of forces and give 1 example for each force. |
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Answer» PLEASE mark me BRAINLIST 1. Gravitational FORCE 2. Electric force 3.Magnetic force 4.Nuclear force 5.Frictional force |
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| 593. |
Which one of the following statements is true. for a simple harmonie oscillator?(A) K.E is maximum when x is maximum (C) P.E is minimum when x is maximum (B) K.E is maximum when Y is minimum (D) P.E is maximum when x is minimum |
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Answer» jctscsrujtstjcjjdctukcukdtkutkdcukctdu tkscutdku tkdtuk SENT in this hsfjhj FS FUNCTIONS CIVICS |
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| 594. |
02. An object is dropped at the top of an inclined plane which of the following is true for the motion of that object |
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Answer» Hey, good morning STAY happy :) |
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| 595. |
Please answer the attached question from ray opticsSPAMMERS WILL BE REPORTED |
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| 596. |
11. A person throws a ball vertically upwards with velocity 20 m s-1 from the top of a building of height h and simultaneously throws another ball with same velocity in downward direction. If the ratio of the time taken by two balls to reach the ground is 5: 2, then the height of the building is m. (Take g = 10 m s-2) 800 9 (a) (b) 9 800 400 3 (0) (d) 3 |
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Answer» Answer: CORRECT option is A Explanation: Correct option is A solution t=5S Time to reach maximum height can be obtained from v=u+at 0=20+(−10)t t=2s s=ut+0.5at =20(2)+0.5(−10)(2) 2 =20m Thus, total distance for maximum height is 45 m s=ut+0.5at 2
45=0+0.5(10)(t ′ ) 2
t ′ =3s Total time= 3+2= 5s |
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| 597. |
For the following vector field F, decide whether it is conservative or not by computing the appropriate first order partial derivatives. Type in a potential function f (that is, ▽ f = F) with f(0, 0) = 0. F (x, y) = (-14x - 2y)i + (-2x + 14y)j• Answer it correctly.• Please don't spam.• Need full explanation.• Don't give any irrelevant answer.━━━━━━━━━━━━━━━━━━━━━━━━━━ |
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Answer» Here is your answer Hope It HELPS You |
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| 598. |
-लघु उत्तरीय प्रश्न 1. किसी राशि के परिमाण के पूर्ण विवरण के लिए किन बातों का ज्ञान आवश्यक होता है? एक उदाहरण देकर समझाएँ। 2. आधारी और व्युत्पन्न राशियाँ किसे कहते हैं? इनके दो-दो उदाहरण दें। |
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Answer» fjhvibjtttyfggggghhhhh |
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| 599. |
Ishan tum kaha se ho yes i am ishita rawat |
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Answer» I am from KANPUR but ALSO in Lucknow some days Uttar Pradesh . I never forget you Ishita . Do not report ANYONE . Thank you . |
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| 600. |
A man move due south at 12 m/s turns towards east and move at 16mt / s . Find change in velocity. |
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Answer» your ANSWER is ATTACHMENT MARK me BRAINLIEST |
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