Explore topic-wise InterviewSolutions in Current Affairs.

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.

Meaning of fusis in brief by physics??

Answer»

FUSIS IS THE GREEK WORD MEANING NATURE OR NATURAL THINGS... PHYSICS BRANCH OF SCIENCE THAT STUDIES NATURAL PHENOMENA..

2.

What should be the position of the object when a concave mirror is to be used a doctor's mirror

Answer» INFINITE is UR ANSWER TA
3.

Q6) State which of the following situations are possible and give an example of each: (a) A body moving with constant acceleration but with zero velocity. (b) A body moving horizontally with an acceleration in vertical direction. (c) A body moving with a constant velocity in an accelerated motion

Answer»

When a body is thrown vertically upward in space, then at the highest point, thebody has zero velocity but the acceleration of the body will be equal to THEACCELERATION due to gravity. ... A body MOVING horizontally with an acceleration in vertical direction is possible in a PROJECTILE MOTION.

4.

6. Find distance and displacement of a body in each of the following situations a) A body travels 25% of the circumference of a circular path having radius “r” cmb) A body is thrown vertically upward from top of a building which is 30 m tall. The bodygoes 5 m high above the top of the building and then falls towards the ground and finally hitsthe ground.​

Answer»

) A body travels 25% of the circumference of a circular path having radius “R” cmb) A body is thrown vertically upward from top of a building which is 30 m tall. The body goes 5 m high above the top of the building and then falls TOWARDS the ground and finally HITS the ground.​To find:Find distance and displacement of a body in each of the above mentioned situations.Solution:a) Circumference of the circle = 2πr25% of the circumference of a circular path = 25% × 2πr= 25/100 × 2πr= 1/4 × 2πr= πr/2∴ The distance covered is πr/2 cm.As displacement is the shortest distance covered, so we have,= √ (r² + r²)    (using Pythagoras THEOREM)= √(2r²)= √2r∴ The displacement is √2r cm.b)A body is thrown vertically upward from top of a building which is 30 m tall. The body goes 5 m high above the top of the building.⇒ distance = 30 + 5 = 35 m.∴ The distance is 35 m and then falls towards the ground and finally hits the ground.​As the object hits the ground, the displacement is 0.∴ The displacement is 0 m.

5.

What changes continuously in uniform circular motion​

Answer»

The direction changes continuously in uniform circular motion. # Since the direction changes, velocity too changes. # The moving object always tries to FACE TOWARDS the center. # The magnitude of uniform circular motion remains Explanation:please mark as branlist

6.

An electric bulb is rated as 50 W, 220 V. Calculate the energy consumed by the bulb in 20 minutes. Express your answer in kWh.

Answer»

hat, an electric bulb is rated as 50 W, 220 V.We have to FIND the energy consumed by the bulb in 20 minutes. From above data we have, power (P) = 50W and voltage (V) = 220VPower is defined as work done upon TIME.Power = 50W = 50/1000 kW Energy is defined as the capacity of doing work. Energy = Power × timeBefore substituting the VALUES in above formula, CONVERT the time into seconds. To convert time into seconds, divide the given value by 60.Time = 20 min = 20/60 = 1/3 secNow, substitute the values in the above formulaEnergy = 50/1000 × 1/3Energy = 1/60 Energy = 0.017 kWTherefore, the energy consumed by the bulb in 20 minutes is 0.017 kW.

7.

Current generated in solar cell called​

Answer»

Direct current (DC) electricity is what solar PANELS produce and what batteries hold in STORAGE, while ALTERNATING current (AC) electricity is the type used on the GRID and in most HOUSEHOLD devices. A device called an inverter is required to convert the DC electricity from solar panels into appliance-friendly AC

8.

An object of mass 1 kg travelling in a straight line with a velocity of 10m/s collides with, and sticks to, a stationary wooden block of mass 5 kg. Then they both move off together in the same straight line. Calculate the total momentum just before the impact and just after the impact. Also, calculate the velocity of the combined object.

Answer»

IS WILL HELP YOU

9.

What do you mean by valuable?????​

Answer»

inition of VALUABLE is something that is worth a LOT, either in terms of MONEY or in terms of being USEFUL or loved

10.

Calculate the resistance of 100 m long copper wire. The diameter of the wire is 1 mm.​

Answer»

's HELPFUL for you

11.

What are the elements of geomagnetism at a place?

Answer» TION:The Earth magnetic FIELD is described by SEVEN parameters. These are DECLINATION(D)inclination (L) horizontal intensity
12.

Draw a ray diagram to show formation an image of an object is placed between the pole and principal focus of the concave mirror .how will the nature and size the image formed change , if the mirror is replaced by the converging lens of same focal length

Answer»

they will meet at INFINITY Explanation:Hope it HELPS you PLEASE MARK me as BRAINLIEST

13.

Frictional electricity examples

Answer» FRICTIONAL electric charge is produced when two bodies rub each other, which makes electric charges (positive/negative) to shift(accumulate) on either of the bodies. For EXAMPLE, when glass ROD is rubbed with a SILK WOOL.
14.

What is electrical power ?write it's unit

Answer» ELECTRIC power is the rate, per unit time, at which electrical energy is transferred by an electric circuit. The SI unit of power is the WATT, one joule per second.Explanation:PLZZZZZ mark me BRAINLIEST
15.

HCl dissolved in water . explain

Answer»

here is your ANSWER EXPLANATION:HOPE it will HELPS you

16.

A body of mass 250 g has a velocity of 25 m/s. calculate its momentum.

Answer»

IS IN THE ATTACHMENT

17.

Photodiode is operated in​

Answer»

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━A photodiode is a SEMICONDUCTOR device that converts light into an electrical current. The current is GENERATED when photons are ABSORBED in the photodiode. Photodiodes may contain optical FILTERS, built-in lenses, and may have large or small surface areas.Working principle: Converts light into currentPin configuration: anode and cathode━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

18.

A bus is moving with a velocity of 72 Kmh-1. On the application of brakes, it stops after covering a distance of 500m. Calculate the deceleration produced bythe brakes.​

Answer»

-A bus is moving with a velocity of 72 km/hr . On applying brakes the bus stops after covering a distance of 500 METERS .Required to find :- DECELERATION of the bus produced by the brakes ? Concept used :- Equations of motion Equation used :-UNITS Conversion :- Here we need to convert the velocity from meters to kilometres Reason :- Since the displacement is given in km/hr we need to convert the velocity into metres per second .1 km/hr = 5/18 m/s 72 km/hr = ? m/s => 72 x 5/18 => 20 m/sThis implies,Velocity of the bus = 20 m/sSimilarly,0 km/hr = 0 m/s SOLUTION :- Given that :- A bus is moving with a velocity of 72 km/hr ( 20 m/s )on applying brakes the bus stops after covering a distance of 500 meters So,From the above we can conclude that ;Initial velocity of the bus = 20 m/sFinal velocity of the bus = 0 m/sDisplacement = 500 meters We need to find the deceleration of the bus So,Using the 3rd equation of motion Here,v = Final velocity u = Initial velocity a = acceleration s = displacement Since negative acceleration is known as retardation or deceleration .So,By substituting the values in the equation We GET,Therefore ,Deceleration of the bus = - 0.4 m/s²

19.

Plzz give daily life examples of the following possibilities. ▪️Kinetic but not potential energy ▪️Potential but not kinetic energy ▪️Both potential and Kinetic ▪️Neither kinetic nor potential​

Answer»

is helps uexample of KINETIC but not POTENTIAL energy FALLING coconutexample of potential energy not kinetic coconut on high treeexample of both AREA arrow from a BOW

20.

Measurement of hall coefficient in a semiconductor provides information on?

Answer» COEFFICIENT and Seebeck coefficient. NEXT the Hall coefficient (RH) and Seebeck coefficient (S) are discussed. Both of the COEFFICIENTS represent the character of conduction careers, and are supposed to be negative in ELECTRON conduction and POSITIVE in hole conduction....
21.

Three capacitor of capacitance 1uf,2uf and 3uf are connected in series. the effective capacitance of caoacitor is ​

Answer»

1/Ceqv=(1/1)+(1/2)+(1/3)1/Ceqv=11/6Ceqv=6/11as we KNOW, q=CVq=(6/11)×230 Coulombthis will be the CHARGE on each CAPACITOR

22.

List the causes of friction

Answer»

of Friction:Friction is a force that resists the relative MOTION between two objects or materials. The causes of this resistive force are molecular adhesion, SURFACE ROUGHNESS, and deformations. Adhesion is the molecular force resulting when two materials are brought into CLOSE CONTACT with each other.itzDopeGirl

23.

Sensitizing device of covid 19 uses​

Answer» TION:AROGYA SETU APP......
24.

Jet of water discharging from 40 mm diameter orifice has diameter of 32mm diameter at its vena contracts. The coefficient of contraction is​

Answer» TION:this QUESTION ANSWER is 0.64
25.

Pls answer quickly .......i will mark brainliest for the best answer​

Answer»

a- the DIRECTION of the force will be downward b- a current CARRYING current when COMES within a magnetic FIELD a force ACTS on the current carrying conductor.c- the force will be negative I hope it helps and it's correct

26.

12. Add the following observations and state the most accurate answer: 13.387 cm: 3.05 cm: 180.0035 cm; 444.5 cm​

Answer»

By ADDING these OBSERVATIONS 13.387+3.05+180.0035+444.5 This is EQUAL to 640.94 As in the statement, it requires the most accurate answer i.e 641.

27.

State newton's second law of motion.show that force is the product of mass and acceleration​

Answer»

's second law of motion:-☛ According to NEWTON's second law of motion,the RATE of change of linear momentum of a body with respect to TIME is directly proportional to the unbalanced force applied on the body and change in momentum take PLACE in the DIRECTION of appiled force.∴ Now,

28.

What is meant by figure of syllogism explain the figures of syllogidsm​

Answer»

The CLASSIFICATION of syllogism according to the arrangement of the middle term,NAMELY the term ( subject or PREDICATE of a proposition) that occurs in both PREMISES but not on the conclusion. PLEASE mark as brilleast if you like my answer say thanks

29.

What is meant by figure of syllogism explain the figures of syllogidm​

Answer»

is the FORM of a syllogism as determined by the position of the MIDDLE TERM in the premisses. There are FOUR possible ARRANGEMENTS of the middle term in the two premisses ; and, therefore, there are four figures of syllogism.itzDopeGirl

30.

Πbond is not formed independent

Answer»

TEMENT IS TRUE REASON GIVEN IN ATTACHMENT

31.

What is myopia?write causes of myopia and how this defeat can be corrected

Answer»

Nearsightedness (myopia) is a common VISION condition in which you can see objects NEAR to you clearly, but objects farther away are blurry. It occurs when the shape of your eye causes light RAYS to bend (refract) incorrectly, focusing images in front of your retina instead of on your retina.Myopia occurs when the eyeball is too long, relative to the focusing power of the cornea and lens of the eye. This causes light rays to focus at a point in front of the retina, rather than DIRECTLY on its surface.Currently, there is no cure for nearsightedness. But there are proven methods that can be prescribed by an eye doctor to slow the progression of myopia during childhood. ... But corrective lenses only work while a person is wearing them and they are not a cure.improve their visual health.Deep-Water Fish. Salmon, tuna, and mackerel are great sources of omega-3 fatty acids. ...Leafy Green Vegetables. ...Eggs and Carrots. ...Berries and Citrus Fruits. ...Nuts. ...Hope it helps you MATE...♥️♥️☺☺

32.

The motion of a particle is described by the equation x= 20cm+(4cm/ s^2)t^2 A) Find the displacement of the particle in the interval t=2 s and t’=5 s. B) Find the average velocity in this time interval C) Find instantaneous velocity at time t=2

Answer»

he motion of a particle is described by the equation x= 20cm+(4cm/ s^2)t^2 To find:A) Find the displacement of the particle in the INTERVAL t=2 s and t’=5 s. B) Find the average velocity in this time interval C) Find instantaneous velocity at time t=2Solution:From given, we have,An equation that represents the motion of a particle,x = 20cm+(4cm/ s^2)t^2  ⇒ x = a + bt²The general form of equation of motion is given by,x = x₀ + V₀t + At²/2where, A = ACCELERATION and V₀ = initial velocityComparing the given equation with the standard equation, we have,x₀ = 20, V₀ = 0 and A = 2B = 2(4) = 8A) The displacement of the particle in the interval t=2 s and t’=5 s. ΔS = x_{T2} - x_{t1} = a + b_{t2}² - a - b_{t1}² = b[{t2}² - {t1}²] ΔS = 4 [5² - 2²] = 4 [25 - 4] = 4 [21] = 84 ∴ The displacement of the particle in the interval t=2 s and t’=5 s is 84 cm.B) The average velocity in this time interval V_{a} = ΔS/Δt = ΔS / [t2 - t1] = 84/[5 - 2] = 84/3∴ V_{a} = 28∴ The average velocity in this time interval is 28 cm/sC) Find instantaneous velocity at time t=2The  equation of motion of a particleV = V₀ + Atwhere, V₀ = 0 and A =  2b = 2 × 4 = 8 cm/s²The instantaneous velocity at t = 2Vi = At = 8 × 2 = 16Therefore, the instantaneous velocity at time t=2 is 16 cm/s

33.

1.Two points A and B are at potentials V1 and V2 with V1>V2.If they are connected by a wire, the direction of flow of current and electrons will be a.current from A to B and electrons from B to A.b.current from B to A and electrons from B to A.c.current from B to A and electrons from A to B.d.current from A to B and electrons from A to B.​

Answer» TION:Current flows from higher POTENTIAL to lower potential. Hence flow of current is from A to B.Flow of electrons is opposite to that of current. Therefore, electrons MOVE towards A from B.
34.

a car travels from point a to point b with a speed of 30 km per hour and then back to point a with a speed of 50 km per hour what is the distance covered by the car and what is the average speed of the car

Answer» TION:☺☺☺ PLSSSSSSSSSSSSSSSSS MARK as BRAINLIEST
35.

(ii) A bus starting from rest attains a velocity of 54 km/h in 60 s, its acceleration is ..........(An​

Answer»

IS IN THE ATTACHMENT

36.

What is difference between physical quantity and vector quantity ​

Answer»

tion:Any physical QUANTITY that does not include direction is known as scalar quantity. VECTOR quantity is ONE, that has both MAGNITUDE and direction. It changes with the CHANGE in their magnitude.

37.

An object 2cm height is placed at a distance of 30cm in front of a concave lens of focal length 15cm . Find the position, nature and size of the image.​

Answer»

Given, TWO lenses having powers -4D and +6D form a combination.The power of the combination of the lenses = -4D + 6D = 2DP=1fThus, the equvalent focal length of the combination, f=12=0.5 m=50 cmObject distance, U = −30 cmLet the IMAGE distance be vFrom lens formula1v−1u=1f1v=1f+1u=150−130=3−5150=−2150v=−75 cmThe image is formed on the same side of the lens as the OBJECT is.Thus, the image is virtual.Magnification, M = vu=−75−30=2.5Height of the object = 2 cmM=Height of the imageHeight of the object=2.5Height of the image=2.5×2=5 cmThus, the image formed is ERECT and 2.5 times magnified.

38.

How many types of pramanas are accepet in indian philoshophy discuss abaut the typesof pratyaksa ​

Answer»

6 PARMANASExplanation:Ancient and medieval Indian texts identify six[5] PRAMANAS as correct means of accurate knowledge and to truths: perception (SANSKRIT pratyakṣa), inference (anumāna), comparison and analogy (upamāna), postulation, derivation from circumstances (arthāpatti), non-perception, negative/cognitive proof (anupalabdhi) and word, testimony of past or present reliable experts (Śabda).[4][6] Each of these are further CATEGORIZED in TERMS of conditionality, completeness, confidence and POSSIBILITY of error, by each school of Indian philosophies.

39.

Answer this i will put as brain list answer me fast by process ​

Answer» 121 KmExplanation:DISTANCE =SPEED × TIME =13÷5 × 140÷3 =2.6* 46.67 =121.34
40.

What is kinetic motion of molecule ​

Answer»

The kinetic MOLECULAR theory of gases describes this state of MATTER as COMPOSED of tiny particles in constant motion with a lot of distance between the particles. Because most of the volume OCCUPIED by a gas is empty space, a gas has a low density and can expand or contract under the APPROPRIATE influence.Explanation:please mark as branlist

41.

Is there any chance for us to see the shadow of the 4 dimensional object?......if so then how?​

Answer»

the ANSWER is no!!!

42.

5. In an election there are three contestants A,B,C. A secured 30% of the votes and B secured 60% of the remaining votes. If C secured 14000 votes, by how many has the winner won the election? (I Point)

Answer»

Hey!Explanation:(a) LET the total NUMBER of VOTES be 100. (b) Let total number of votes be x. (C ) 3x100+60100(x−30x100)+1400=x.

43.

1.Why a battery or a cell is connected in a circuit? a.to measure currentb.to maintain potential differencec.to measure voltaged.to oppose current​

Answer»

(d). to OPPOSE CURRENT

44.

an electric motor takes 6 ampere from a 2020 volt line. calculate the power of the motor and energy consumed in 3 hours​

Answer»

lectric MOTOR takes 6 ampere from a 2020 volt line. calculate the power of the motor and energy consumed in 3 hours.Solution:-• Power (P) is given by the expression,P = VIWhere,Voltage,V = 220 VCurrent, I = 5 AP= 220 X 5 = 1100 WEnergy consumed by the motor = PtWhere,Time, t = 3 h = 3 x 60 x 60 = 10800 sP = 1100 x 10800 = 1188 × 10^4 JTherefore, power of the motor = 1100 WEnergy consumed by the motor = 1188 × 10^4 J i hope it helps you.

45.

From the table,which lens has less focal lenth?

Answer»

Hey!Explanation:A lens with a focal length shorter than normal is often REFERRED to as a wide-angle lens (typically 35 mm and less, for 35 mm-format cameras), while a lens significantly LONGER than normal may be referred to as a TELEPHOTO lens (typically 85 mm and more, for 35 mm-format cameras).

46.

Prove that the total mechanical energy of a body sliding down a smooth inclined plane under gravity remains constant ?

Answer»

y of mass moves along the inclined plane with an acceleration From the FIG. we get relation between ALTITUDE of wedge and length of inclined SURFACE as,At point A, body has no velocity hence its kinetic energy is zero.The potential energy of the body at A is,Hence total energy at A will be,At point B, the body has velocity given by third equation of motion as,Hence kinetic energy of the body at B is,When the body is at B, its height from ground will be Potential energy of body at B is,From (ii),Hence total energy of the body at B will be,At point C, the body has velocity which is given by third equation of motion as,So kinetic energy of body at C is,From (i),At C the body reaches the ground, hence it has no potential energy there. Hence total energy of body at C is,From (1), (2) and (3),This IMPLIES total mechanical energy of the body remains constant throughout its motion, and that energy is CONVERTED from one form into another during its motion.Hence the Proof!

47.

When 'n' resistors of equal resistance (R) connected in series and parallel respectively, then the ratio of their effective resistance is

Answer»

1/n^2Explanation:For SERIES it is R/nFor PARALLEL it is nRSo RATIO is (R/n)/Rn=1/n^2

48.

Draw the speed time graph for the following data speed 40 metre per second 60 metre per second hundred metre per second and time 0-1 second 1-2 second 2-5 second

Answer»

okkkkkkkkkExplanation:ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

49.

Imagine that the distance from school to your friends house is 2250m state in kilometre

Answer»

your ANSWER buddy ,Answer: 2.25 km.Explanation:1 km = 1000M Therefore, 2250 m = 2250/1000 km= 2.250 km or 2.25km or2 km 250 meters.Hope it HELPS you!!All the best for your future!!

50.

8. Tom tries on four types of footwear in a sports shop. ski boot trainer ice skate walking boot (a) (i) When Tom tries on the footwear, which one sinks into the carpet the most? (ii) When Tom tries on the footwear, what is the same for each type of footwear? Tick the correct box. the area of the footwear Tom’s weight on the footwear the material of the footwear the weight of the footwear (b) The drawing below shows a snowshoe. (c) How do snowshoes help people to walk in deep snow?8. Tom tries on four types of footwear in a sports shop. ski boot trainer ice skate walking boot (a) (i) When Tom tries on the footwear, which one sinks into the carpet the most? (ii) When Tom tries on the footwear, what is the same for each type of footwear? Tick the correct box. the area of the footwear Tom’s weight on the footwear the material of the footwear the weight of the footwear (b) The drawing below shows a snowshoe. (c) How do snowshoes help people to walk in deep snow?

Answer»

Hey!Explanation:(a) Tommy tries on four types of footwear in a sports shop. (i) When Tommy tries on the footwear, which one sinks into the carpet the most? The ice-skate   (II) When Tommy tries on the footwear, which of the following is the same for each type of footwear? A the area of the footwear B Tommy's weight on the footwear   C the material of the footwear D the weight of the footwear (1 mark) (b) The drawing below shows a snowshoe. Explain how snowshoes help people to walk in deep snow? Pressure is what makes you sink into the snow. Pressure is force divided by contact area.    The snowshoes have a BIG contact area with the snow compared to the area of the soles of shoes alone. Therefore they reduce the pressure the person's weight exerts on the snow by spreading it out over a bigger area than WOULD be the case if he just wore shoes. He therefore will not sink as deeply into the snow. NEVER say 'they spread out the pressure' - they spread out the force, not the pressure! (c) Choose the correct word from the following list to complete the sentence below. air resistance friction gravity magnetism When Tom is ice skating the force of .......friction.......... between the skate and the ice is less than when he is walking on a carpet.