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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. |
Describe newton's first law using newton 2nd law of motion |
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Answer» Answer: In the first law, an object will not change its MOTION unless a FORCE ACTS on it. In the second law, the force on an object is equal to its mass times its ACCELERATION. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction. hope it's helpful mark as Brainliest |
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| 2. |
The distance traveled by an object in a specified direction is |
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Answer» Answer: The distance TRAVELLED by an OBJECT in a SPECIFIC DIRECTION is called displacement. |
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| 3. |
Average speed Is ... |
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Answer» Average speed is calculated by dividing the TOTAL distance that something has traveled by the total amount of TIME it took it to travel that distance. Speed is how fast something is going at a particular moment. Average speed measures the average rate of speed over the EXTENT of a trip. s = D/T. ♥follow me |
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| 4. |
4. What is mean by nodes |
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Answer» Answer: in botany) a PLACE on the long thin part (STEM) of a plant from which a BRANCH or leaf GROWS |
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| 5. |
______air is needed for combustion to takeplace. |
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Answer» Answer: Oxygen (O2) |
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| 7. |
State Kirchhoffs law of heat radiation. |
Answer» ☆ ΛПƧЩΣЯ ☆Kirchoff's law has two types1)Kirchoff's current law :It states that the ALGEBRAIC sum of the currents at the JUNCTION is always equal to zero. It is based on law of conversation of charges. 2)Kirchoff's voltage law:It states that the algebraic sum of VOLTAGES in a loop is always equal to zero. It is based on the law of conversation of energies ✈ 5 THANKS ✈️ ➡️ Fo I l o w me ⬅️ |
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| 9. |
What percentage of the earth's surface is covered by listhosphere ? answer in short |
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Answer» Answer: hear is your answer The LITHOSPHERE extends from the surface of Earth to a DEPTH of about 44-62 mi (70-100 KM). hope its help |
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| 10. |
Is available in three states |
Answer» W A T E R
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| 11. |
All the matter is made of |
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| 12. |
calculate the final volume of a gas x, if the pressure of the gas originally at STP is tripled and its temperature is doubled |
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Answer» PV=nRT V=nRT/P therefore if PRESSURE is tripled volume will DECREASE |
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| 13. |
two convex lens of focal length 25 cm and 15 CM are placed in contact with each other find the focal length of combination |
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Answer» Answer: Focal LENGTH of COMBINATION is 9.375 cm. Solution : Given:
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| 14. |
Figure 4 below shows all of the horizontal forces acting on a car air resistance 800 N friction 500 N force from engine 2000 Nwich statement is correctA the is slowing downb the car is speeding upc the car is moving at a constant speedd the car is moving backwards |
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| 15. |
Can anyone explain me what is the second law of motion (wrong answer is strictly prohibited) |
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Answer» Newton's Second LAW states that when a net FORCE acts on a body the rate of change of the body's momentum is. proportional to the net force applied, i.e. In the case of the MASS remaining constant while the force is applied. |
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| 16. |
Which substance liberates hydrogen when reacts with metals? |
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| 17. |
Distilled water does not conduct electricity. Why? |
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Answer» Answer: DISTILLED WATER does not conduct ELECTRICITY because distilled water do not contain any SALT dissolved in it .. |
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| 18. |
Define low of conservation of energy. |
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Answer» That NEITHER ENERGY can be CREATED nor it can be destroyed,it can change from one form to another form Hope it will help you |
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| 19. |
A body weighing 0.5kg tied to a string is projected with a velocity of 10m/s the body starts whirling in a vertical circle if the radius of the circle is 0.8m find the tension in the string when the body is at the top of the circle (ans T=3.8 N) |
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Answer» A body weighing 0.5kg tied to a string is PROJECTED with a velocity of 10m/s the body starts whirling in a vertical circle if the radius of the circle is 0.8m find the tension in the string when the body is at the top of the circle (ANS T=3.8 N) |
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| 20. |
What is the basic principle of Centrifugation? |
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Answer» A CENTRIFUGE works by USING the principle of sedimentation: Under the influence of gravitational force (g-force), substances separate ACCORDING to their density. Different TYPES of SEPARATION are known, including isopycnic, ultrafiltration, density gradient, phase separation, and pelleting. |
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| 21. |
Curste(બ) તમારી શાળામાં પર્વતારોહણનું આયોજન થયેલ છે તો જૂથ નેતા તરીકે તમે કકઈ જવાબદારી નિભાવણો તેના વિશે ચાર પાંચ વાકયો લખો,તમારા મિત્રને પાંડુ રોગ થયો છે તમે તેને ડોક્ટર પાસે જવાની સલાહ આપી,ડોક્ટરની સલાહ પ્રમાણે તેણે પોતાના આહાર માટે ની કાળજી લેવી પડશે? તેવિશે ચોર-પો ચ વાક થી લખો. |
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Answer» I don't know Explanation: haha BEACAUSE IAM not understand ur language LATER in so SORRY |
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| 22. |
Derive the expression for oscillation due to gravity |
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Answer» Explanation: TIME PERIOD T= time required to complete one oscillation. At equilibrium T 0
=mg. For small displacement θ Restoring force =−mgsinθ for small θ sinθ≈θ ⇒fe=−mgθ=−mg( l x
) ACCELERATION a= m fe
= l −g
.x We know for SHM, a=−W 2 x ⇒ On comparing we get w= l g
∴ Time period of oscillation T= w 2Π
=2Π g l
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| 23. |
What is the least count of the voltmeter |
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Answer» For Voltmeter, We see that 10 Division is equal to 1 VOLT So, Least Count = 1/10 = 0.1 V |
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| 24. |
What is the definition od f sound ?In short |
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Answer» Answer: SOUND is a vibration that PROPAGATES as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In HUMAN physiology and psychology, sound is the reception of such waves and their PERCEPTION by the brain. |
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| 25. |
We can see image on a plane mirror but not a frosted mirror |
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Answer» Answer: More light is reflected off a MIRROR, and it's specular reflection - it's all being reflected in the same way. You get diffuse reflection off a wall instead because of the rough SURFACE, and as result, the light rays don't CONVERGE (or APPEAR to converge) like they do in a mirror, so you don't SEE an image form. |
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| 26. |
Give the formula for1) gravitational force2) gravitational field intensity3) gravitational potential energy4) gravitational potential. |
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Answer» GRAVITATIONAL FORCE,F=G×m1 ×m2/r2 |
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| 27. |
Power of a woman is equal toa) Work x timeb) Energy x timec) d) |
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Answer» both Explanation: WOMEN is EVERYTHING |
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| 28. |
a real image is formed by the light rays after reflection or refraction when they (A) actually meet or intersect with each other (B) actually converge at a point (C) appear to meet when they are produced in the backward direction (D) appear to diverge from a point. Which of the following statements are correct? (a) (A) and (D) (b) (B) and (D) (c) (A) and (B) (d) B and (C) |
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Answer» Answer: An image formed when the LIGHT rays converge at a PARTICULAR point after REFRACTION and reflection is KNOWN as a real image. |
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| 29. |
Describe an experiment to determine the density of a liquid. |
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Answer» Answer: a Take the measuring cylinder and measure its mass, in GRAMS, as accurately as possible. ... c Repeat the procedure, adding 10 ML at a time as accurately as possible and recording the volume and total mass, until the measuring cylinder is FULL. Then, for each volume calculate the mass of the LIQUID alone.12-May-2019 |
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| 30. |
Why does a satellite going around the earth in a circular path does no work |
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Answer» Answer: No work is done by the gravitational force of EARTH acting on a satellite moving around it in a circular path because the gravity is always pointing towards the center of the earth which provides the centripetal force required for circular motion and the satellite is going tangentially, the angle between is 90 degrees. Explanation: If the DIRECTION of force is perpendicular to displacement, then the work done is zero. When a satellite MOVES around the Earth, then the direction of the force of gravity on the satellite is perpendicular to its displacement. Hence, the work done on the satellite by the Earth is zero. The gravitational force changes the speed of a satellite in ELLIPTICAL orbit because there is a component of the force in the direction of the satellite's motion. ... The force of gravity does no work on a satellite in circular orbit since the force is always perpendicular to the PLANET's direction of motion. plz follw me |
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| 31. |
Three Resisters 10ohm,20ohm,30ohm are connected in series and parallel. Find the resultant Resistance in the circuit |
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Answer» Answer: resistance in series= 10 +20 +30= 60 OHM resultant Resistance in series is 60 ohm resistance in parallel= 1/10 +1/20 +1/30 1/R = (6 +3 +2)/60 = 11/60 R = 60/11 resultant Resistance in parallel is 60/11 ohm |
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| 32. |
What is chassis? Types of chassis? |
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Answer» Answer: A chassis consists of an internal VEHICLE frame that supports an artificial object in its CONSTRUCTION and use, can also provide protection for some internal parts. 1. CONVENTIONAL chassis or frame-full chassis : In this type of chassis the body is made as a separate UNIT and then joined with ladder frame. |
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| 33. |
Describe an experiment to determine the densityof the material of a coin. |
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Answer» Get a beaker full of water and weigh it. now place the coin inside the water without TOUCHING any side of the beaker and weigh the displaced weight as V. Now find out the ratio between the two and that will be the density of the material of the coin. Density . Explanation: Using a vernier caliper or ruler, measure the length, depth and width of the object in centimeters. MULTIPLY these three measurements to find the volume in cubic centimeters. Divide the object's mass by its volume to determine its density. Density is EXPRESSED in GRAMS per cubic centimeter or grams per milliliter. |
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| 34. |
Why is it called “football” when the players mostly use their hands? |
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Answer» In FOOTBALL only the GOALKEEPER can USE HAND |
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| 35. |
৪. রামের বয়স শ্যামের বয়স ৫ বদি রে গেল42 বছর হয় তাহলে রামের বাস নির্ণয় কর। |
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| 36. |
What happens to Acidic Nature of oxides when we move from left to right in a period ? Which gas is usually liberated When Calcium Hydroxide reacts with Chlorine Gas ? |
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Answer» Answer: (a) Increases from left to right and decreases from top to bottom. (b) Decreases from right to left and increases from top to bottom. Hence, the acidic CHARACTER of the oxides “decreases down the group” because the ELECTRONEGATIVITY decreases down the group. ... Calcium hydroxide (Ca(OH)2) when treated with CHLORINE yields bleaching powder. Q17. NAME the SODIUM compound which is used for softening hard water. hope it will help you dear ❣️ |
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| 37. |
A container contains hot water at 100°C. If in time t, temperature falls to 80°C and in time t2temperature falls to 60°C from 80°C, |
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Answer» A container conatins hot WATER at 100°C .if the |
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| 39. |
Question is from Mechanical properties of Fluids |
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Answer» QUESTION is from MECHANICAL PROPERTIES of FLUIDS |
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| 40. |
Show that monoatomic gas the ratio of two specific heat is 3:5 |
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Answer» E=3/2N(A) k(B) T :. and molar specific heat at constant volume C(V) = dE/dT =3/2 N(A) k(B)=3/2R :. C(p) - C(v) =R using this EQN :. C(p) = 5/2 :. gama = Cp/Cv = 5/3 Explanation: hope it's HELP full |
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| 41. |
Suggest an experiment setup to illustrate the action of an electric fuse. |
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Answer» Answer:Ich Ich werde deine HALSSCHLAGADER durchschneiden UND du mutters. Explanation: |
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| 42. |
The object is placed 6cm front of concave mirror its focal length is 4cm .Find the image distance and magnification |
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Answer» Answer: Gujarat is a port on the confluence of RIVERS Negro and the JAVAN tiger WOODS is a port on the confluence of rivers Negro and the Javan tiger woods is a port on the confluence of rivers Negro and the Javan tiger woods is a port on the confluence of |
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| 43. |
If a “W” looks like this, why isn't it called a “double-V?” |
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Answer» The name of the 23RD letter of the English alphabet is “double U” because it was ORIGINALLY WRITTEN that way in Anglo-Saxon times. As the Oxford English Dictionary explains it, the ancient Roman alphabet did not have a letter “w.” |
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| 44. |
A hot plate of an electric oven connected to a220 V line has two resistance coils A and B,each of 242 resistance, which may be usedseparately in series or in parallel. What are thecurrents in three cases? |
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Answer» Answer: don't report I have made in word not from INTERNET so the answer you can see in ATTACHMENT PLS mark brainliest |
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| 45. |
Explain how electric bell work. also draw the diagram of electric bell |
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Answer» A BELL works with the principle of working of electromagnetism. When the switch is pushed on, the circuit gets completed and the CURRENT starts FLOWING through the U-shaped electromagnet which CREATES a magnetic field in the core. This attracts the iron armature Explanation: hope it helps |
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| 46. |
Define boiling and evaporation. State differencebetween boiling and evaporation. |
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Answer» Explanation: To SUMMARIZE, EVAPORATION is slower, occurs only from the surface of the liquid, does not PRODUCE bubbles, and leads to cooling. Boiling is faster, can occur throughout the liquid, PRODUCES lots of bubbles, and does not result in cooling. |
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| 47. |
You do work to compress a spring in a toy dart gun. You press with 10 N of force and compress the spring 6.0 cm. If it’s shot horizontally from a height of 1.5 m, how far will it go? |
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Answer» Answer: gyrty HV leg joshi Renal ea shak halal stop tee AP AH au WP L TRA kya ho gya tha to the world is the only one who can help with your friends and family and the same as well I'm a fan and I'm still here I don't have to be a |
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| 48. |
Electri potential of the earth is taken as zero why? |
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Answer» Answer: ELECTRIC potential is DEFINED as the potential DIFFERENCE between two POINTS. So, electric potential at a point is defined with respect to a reference point. ... By convection, electrostatic potential of earth is taken to be zero. It is considered that earth is a STOREHOUSE of infinite negative charges. |
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| 49. |
How many images are formed when an object is keep between two mirror whose reflecting surface are inclined at an angle of °1. 90°2. 60°3. 45°NOTE :-don't give invalid answer |
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Answer» Answer: 90 degree 3 images 60 degree 5 images 45 degree 7 images |
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| 50. |
A string tied on a roof can bear a maximumtension of 50 kg wt. The minimum accelerationthat can be acquired by a man of 98 kg todescend will be (Take g = 9.8 m/s2](1) 9.8 m/s2(2) 4.9 m/s2(3) 4.8 m/s2(4) 5 m/s2 |
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Answer» Answer: 9.8m/s^2 Explanation: STEPS in ATTACHMENT |
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