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.

a vehicle starts from rest and uniformly accelerates at 1m/s^2 find the distance travelled in the 3 second

Answer»

u=0

a=1 m/s^2

t=3 sec

therefore, s=ut+1/2at^2=0+1/2(9)=9/2 m

is it CORRECT



2.

Is time travel possible if yes then how can we time travel

Answer»

YUP it is possible as per ONE theory

but for that you NEE to travel FASTER than SPEED of light which is impossible


hope this answer helps!!!!

3.

Distance-time and velocity-time graphs for uniform and uniformly accelerated motion?explain

Answer»

For a uniformly accelerated motion RATE of CHANGE of VELOCITY will be same. and for a uniform motion it will be a straight line in graph.


Brainliest answer PLS

4.

Deduction of first law of motion from second law of motion

Answer»

I THINK this will HELP you

5.

Two boys of mass 50kg each are sitting 1m apart. Find the force of gravitation acting between them.

Answer» 50G is the FORCE ACTING between them
6.

Why we don't take the gravitational acceleration (g) negative when it's acting downward (gravitational potential energy)??

Answer»

It's not ACTING against the GRAVITY

7.

Why is it difficult to stand still in an ice skating rink

Answer» ACTUALLY if we stand on ice it will not be DIFFICULT but due to the PRESENCE of water in its surface it makes us difficult to stand PROPERLY.
8.

What si the average speed of a car which covers half the distance with the speed of 50km/hr and the other half with a speed of 70km/hr

Answer» 60 km/h is the AVERAGE SPEED of CAR
9.

Help!!! Derive graphically v^2 = u^2 + 2as...

Answer»

DERIVE GRAPHICALLY v^2 = u^2 + 2AS...

10.

Define principle of homogeneity

Answer»

Hey mate here is your ANSWER....

________________________

________________________

The principle of homogeneity is that the dimensions of each the terms of a dimensiional equation on both sides are the same . Any equation or formula involving dimensions (LIKE mass, LENGTH, time , temperature electricity) have the terms with same dimensions.

___________________________

___________________________

hope it helps u...
can u mark me as BRAINLIST...
any problem ask in COMMENT....

11.

a car travels at a speed of 30 km per hour in 30 min and travel at speed of 40 km per hour in the next 1 hour find total distance travelled by the car

Answer»

Distance covered in 30 MIN =30*0.5=15km
Distance covered in next 1 hr=40*1=40km
total distance TRAVELLED =15+40=55km

12.

Find potential difference between points A and C

Answer» POTENTIAL DIFFERENCE between A to C is 2V
13.

How to separate pure common salt from impure salt?

Answer»

Evaporation is the method by which we can separate PURE COMMON SALT from IMPURE salt.

14.

Question no. 03 with complete explaination.it's more than one correct type.

Answer»

A) Because TOTAL Distance can't be less than Total Displacement and hence Avg Speed is never less than Avg Velocity

B) Because | dv/dt | is the magnitude of acceleration and d|v|/dt is the rate of change of speed. In uniform circular motion, acceleration is not ZERO. But Speed is constant and hence d|v|/dt is 0.

C) Yes it is possible that instantaneous velocity is not zero even THOUGH the AVERAGE velocity is 0. For Example in Circular Motion.

D) is INCORRECT because since particle is moving is moving in straight line and for displacement to be zero it must have some -ve acceleration due to which it's instantaneous velocity must be 0 at the point of turning.

15.

2-3 lines answer of Ramesh says Earth is Flat what do you say

Answer» YES of Of COURSE. he is RIGHT.

whatcha your EXPLANATION?
16.

A man goes from A to B of distance 20 meter in 5 minute, then B to c distance 30 meter in 4 minute and C to D of distance 10 meter in 1 minute and return to A in 12 minutes. Find his average speed in meter per second.

Answer» AVERAGE SPEED =TOTAL distance /total time
av. speed =(20+30+10+60)/(5+4+1+12)
=120/22 m/min =(120*60)/22
=7200/22m/s = 3600/11 m/s
17.

Rain pouring at 37 degrees with vertical has 10 m/s speed. A person runs against the rain with 8 m/s speed and sees rain making an angle ‘X’ with the vertical. Find X

Answer»

45°
speed of rain = 8 m/s in vertical direction ( SIMPLE TRIG)
now speed of wind is 6.
use trig to find ANGLE after adding USING TRIANGLES law.

18.

Decribe heating time constant and cooling time constant

Answer»
"Heating time constant"
The time taken to change the temperature of a THERMISTOR from an initial temperature T0 to the TARGET temperature is called the heating time constant. 

"Colling time constant "
The time taken by the machine for its temperature rise to FALL to 0.368 of its initial value. 

hipe it help u
19.

All this answers pls tell fast

Answer» PUSH or PULL of an OBJECT
20.

If we increase the velocity of object then why doesn't the potential energy changes?

Answer»

Bcoz it had no DISPLACEMENT and distance and ALSO depends upon OBJECT

21.

Pressure is directly proportional to area true or false

Answer» TRUE.... PRESSURE is DIRECTLY PROPORTIONAL to AREA
22.

Give an example of force which merely changes the directions of a body

Answer»

While playing SPORTS like FOOTBALL,CRICKET etc the DIRECTION of ball changes when a force I.e. BAT or our leg hits it

23.

why a minibus is more likely to topple over when the roof is havily loaded than whan the roof is empty

Answer»

Because when the ROOF is heavily loaded center of GRAVITY moves away from ground when it TILTED a BIT the torque of gravity which is proportional to perpendicular distance from axis of rotation which in this case is the interface between TYRE and ground of oneside of bus

24.

Why Is the pressure exerted by the pointed end of nail than flat head end

Answer»

Pressure= FORCE /AREA
if force is same
points have LOW area hence it EXERT bigger force
flat hade have big area so it exert low pressure

25.

A science working model for class 9

Answer»

Apni gf KE sath how do animals REPRODUCE vale chapter ka practical karke DIKHA de . doggy style me KARIO....

26.

Write any two differences between homogeneous and hetrogeneous mixture?

Answer»

The DIFFERENCE between heterogeneous andhomogeneous MIXTURES is the degree at which the materials are mixed together and the uniformity of their composition. Ahomogeneous mixture is a mixture where the COMPONENTS that MAKE up the mixture are uniformly distributed throughout the mixture.

27.

Explain displacement

Answer»

DISPLACEMENT is NEAREST DISTANCE from STARTING POINT.

28.

Newtrons 2nd law explain

Answer»

Its states that the ACCELERATION of an OBJECT is dependent UPON two variables - the NET force acting upon the object and the MASS of the object.

29.

body of mass 5 kg is moving with a velocity of 10 M per second a force is applied to it so that in 25 seconds it attains a velocity of 35 M per second calculate the value of the force applied applied to the body

Answer»

U=10 v=35 t=23
v=u+at
35=10+23a
a=15/23×5
a=3.2 ms^-2
force=mass ×acceleration
=3.2N

30.

Examples of postive,negative and zero workdone

Answer»

POSTIVE WORK DONE
1. Moving a chair.
2. CUTTING a fruit with knife.

NEGATIVE WORK DONE
1. Someone pushes you.
2. When you JUMP work done by gravity is negative.

ZERO WORK DONE
1. A car start and end at same place.

hope it HELP.....

31.

What is force. describe with an example.

Answer» HEYA..here is UR answer...
push or pull action is SAID to be FORCE...
eg...
gravitational force, electrostatic force..
32.

Vector quantity used in arithmetic mostly or not

Answer» VECTOR QUANTITY is MOSTLY USED in ARITHMETIC
33.

Define si unit of plane angle

Answer»

Radian..Is the si unit of plane angles..plz MARK BRAINLIEST

34.

Who discoved xray ,,,,,

Answer»

Wilhelm CONRAD Roentgen has discovered X Ray.

plzzzz MARK my ANSWER as BRAIN list

35.

10 lb= how much kg ?? Tell it fast with proper solution pls

Answer» 10 LBS = 4.563 KG. HOPE it HELPS.
36.

What should you do after your boat runs aground and you determine that there are no leaks?

Answer»

Thank you for this QUESTION. Please find the answer below:

After your boat runs aground and you determine that there are no leaks, you should take the following steps;

(i) Stop the engine and LIFT the outdrive and don't put the boat in reverse.

(ii) It is important that you shift the weight to an area that is farthest away from the point of impact.

(iii) TRY to keep away from the rock, bottom, or reef which can be DONE with a paddle or boathook.

(iv) Make sure that the boat is taking water.

37.

Metion the four important type of force of nature

Answer» GRAVITATIONAL FORCE, electrostatic force, strong NUCLEAR force, WEAK nuclear force
38.

What is uniform motion distinguish between distance and displacement

Answer»

Uniform motion is a type of motion in which velocity of an OBJECT is const. (it's direction too ) ... it travels in straight line ... and also covers equal DISTANCE in equal time INTERVAL...
Distance is the total measure of the path covered by the object whereas displacement is the distance between initial and final point...
hope it HELPS ...

39.

Derive the formula for kinetic energy of objects of mass m moving with velocity v

Answer»

HEYA.......!!!!


________________________



We KNOW that CHANGE in kinetic ENERGY is = Work done .


⇒ ΔKE = W


⇒ ΔKE = F*x ( work done = F*x )


⇒ ΔKE = ma*x


Applying equation of motion:


=> v² = u² = 2as ( u = 0 )


a = v²/2x

Put VALUE of a in ( ma )


Kinetic Energy = 1/2mv²





===========================



Hope It helps You. ^_^


40.

Why gresses are applied between the moving parts of motor vehicles

Answer»

To REDUCE FRICTION and to BECOME the OBJECT SMOOTHER

41.

What is the speed of the wave if it travels 800 m in 2 ?

Answer»

Distance=800m
Time=2s
sol: Speed=Distance/time
Speed=800/2
Speed=400m

42.

In which direction you will fall if the horse you are riding suddenly stops galloping why?

Answer»

Hi FRND here is your answer.................
we will fall in UPWARD direction because of INERTIA of motion.
Hope my answer HELPS you..........
if u LIKE the answer please mark as brainlist.

43.

Pukar performing emotion on inhibitor speed of an 144 km per hour stop and applying break after covering a distance 200m find acceleration

Answer»

The ACCELERATION will be -103.68 m/s-2

44.

the sum of magnitude of two forces acting at a point is 18 Newton and the magnitude of the resultant is 12 ton is resultant make an angle of 90° of smallest negative then find the magnitude of the two forces

Answer» THANKS for QUESTIONING
45.

Find the total displacement of the body from the following graph.

Answer»

DISPLACEMENT is 65

solution is below.................in the PICTURE

46.

List the factors on which time period of a pendulum depends

Answer»

This is the FACTOR EFFECTING TIME PERIOD

47.

a force of 15 n causes a displacement of 5 m in its own direction. what is the magnitude of work done?

Answer»

W=f s COS(THETA)
w=15N×5×cos(0)
w=75

48.

Handle of a cricket bat low or high

Answer»

Hi friend... I didn't get it.... PLEASE can you SAY CLEARLY.

49.

When we fire a gun in air why the bullet did not come back to earth surface

Answer»

. If you fire a gun into the air, the bullet will TRAVEL up to a mile high (DEPENDING on the angle of the shot and the POWER of the gun). Once it REACHES its apogee, the bullet will fall. Air resistance limits its speed, but bullets are designed to be FAIRLY aerodynamic, so the speed is still quite lethal if the bullet happens to hit someone.




hope
it's
enough

50.

scooter Travels at a speed of 30 km per hour along a straight path from the 20 m how much distance is he traveled

Answer»

If it is 20 MIN then
SPEED of SCOOTER = 30 km h
time = 20 min or 20/60 hour or 1/3 hour
therefore DISTANCE
= 30× 1/3
= 10 km