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.

Why friction are nonconservative force

Answer»

FORCES that do not STORE ENERGY are CALLED nonconservative or DISSIPATIVE forces

2.

an object 5 s to reach the Grond from a height of 5m on a planet what is the value of g on the planet

Answer»

Formula to be used : Second EQUATION of motion


S = UT + 1 / 2 gt²


S refers to height, U refers to initial velocity, t refers to time and g refers to gravity.


S = 5 m ; t = 5 seconds ; U = 0 m / s ( As OBJECT is dropped from rest )


Substituting in the equation we get,


5 m = 0 * 5 + 1 / 2 * g * 5²


5 m = 0 + 25 / 2 * g


5 m = 25 * g / 2


=> 5 m * 2 / 25 = g


=> 10 m / 25 second² = g


=> g = 0.4 m/s²

3.

Derevation of 3rd equation of motion mathematically

Answer»

, Hey.... MISS...

i think its GOOD for U...

HOPE ITS HELPFUL

4.

What is ment by saying that the electric potential at a point is a volt ?

Answer»

It MEANS that POSITIVE CONDITION i THINK it so but i m not SURE about it

5.

Why are fast moving vehicles stream line shape

Answer» STREAMLINED SHAPE DECREASES FORCE of FRICTION.
6.

Difference b/w Conductors and Insulators.(No short answers)

Answer»

Hola Makhi!!

Your answer :-

Conductors - The SUBSTANCE which allow the current to pass through them are called conductors.

Insulators - The substance which do not allow the current to pass through them are called Insulators.

Good CONDUCTOR of electricity - Copper

Good conductor of HEAT - Iron

Insulator of electricity - Wood

Insulator of heat - Plastic

Hope it helps!!

REGARDS @e ☆

7.

She moves in constant speed in constant direction.write this in fewer words

Answer»

She will MOVE from that CONSTANT SPEED in the constant DIRECTION.......

8.

Which is larger out of dyanamics friction static friction and kinetic friction

Answer» STATIC FRICTION is the AWNSER
9.

Suppose you are inside the water in a swimming pool near an edge. A friend is standing on theedge. Do you find your friend taller or shorter than his usual height? Why?

Answer»

We FIND SHORTER DUE to more wavelength and refractive INDEX

10.

Is symmetry breaking always related to phase transition?

Answer» YES, symmetry BREAKING ALWAYS RELATED to phase TRANSITION.

11.

How to measure radius of fillet of any object using vernier caliper?

Answer»

REFERRED to the ATTACHMENT

12.

Explain why the value of g is zero at the centre of the earth

Answer»

GRAITY is 0 at centre of earth because the newtons LAW states that as you go AWAY from EATH gravity decreases

13.

What is the reading of ammeter?

Answer»

The AMMETER READING is 9A

14.

when an object is thrown upwards ,what is yrue velocity and acceleration at the highest point of motion of the object

Answer» VELOCITY and ACCELERATION both become =0. at highest POINT.
15.

What do you understand by trade winds?

Answer»

A wind blowing steadily towards the equator from the north-east in the NORTHERN hemisphere or the south-east in the southern hemisphere, especially at sea. Two belts of TRADE winds encircle the EARTH, blowing from the TROPICAL high-pressure belts to the low-pressure zone at the equator.........

16.

a car cover one fourth of the total distance with velocity of 20 m/s next one fourth part with the velocity of 40 m/s then next one fourth part with the velocity of 20m/s and last one fourth part with the velocity of 40m/s find the average speed of car

Answer»

I presume that by "SPEED", we MEAN "velocity" & that all velocity vectors here are in the same direction.

Distance = X mtrs

time takes is (x/2 /20) + (x/2 /30)

= x/40 + x/60 sec

= (3x/120 + 2x/120) sec

= 5x/120 seconds

|velocity| = speed = dist (x) / time (5x/120)

= 1M/(5/120)sec

=120/5 m/sec

= 24 m/s

17.

What is the approximate mean distance from neptune to the sun in astronomical units?

Answer» NEPTUNE be is1000lightyears AWAY from SUN
18.

If earth stops rotating what is it effect on centrepetakl force

Answer»

The, centrepetal FORCE become zero.
and our blue green Bob (earth) will FLY with a GREATER SPEED.

19.

How to calculate time when plane changes its speed in different curvature?

Answer» V mckckckckckccckkckckc
20.

Physics 10 questions and answer

Answer»

Which TYPE of QUESTIONS do U NEED

21.

What is the 3rd law of motion.......and any coc player

Answer»

Hey mate I hope it must help u

3rd LAW of motion

Newton FOUND three laws of motion

This law is
" For every action there is EQUAL and OPPOSITE reaction '

example - If you hit a ball to a wall with some force the ball will come back with the same force

PLS mark it as brainliest

22.

Help me outA car travels 100km at speed 60km/hr and returns with speed 40km.Calcuate average speed

Answer»
\frac{60 + 40} {?2 }  = 50 \\
23.

Collect the information about the lenses available in an optical shop. Find out how the focallength of a lens may be determined by the given ‘power’ of the lens.

Answer»

Answer:

EXPLANATION:

Power is RECIPROCAL of the WAVELENGTH, hope you understood

24.

If u press an inflated balloon it deforms due to what force

Answer» YES it's RIGHT .............
25.

If the weight if an object is 80 kg calculate its mass

Answer»

Unit of weight is 'N'

weight of OBJECT 80 N then mass is 8 kgs

26.

Fill this chart please

Answer»

Here is UR ANS....
Air---in motion is called--Wind--VARIOUS types
| |
| 1) TRADE wind
|. 2) Local wind
Exerts
|
Pressure

27.

It's time for help ok

Answer»

Because of FLUID and combination of AIR PARTICLES PRESENT in atmosphere

28.

Please answer me friends

Answer»

No, it is not POSSIBLE because there MUST be centrifugal force to keep you in the CURVE, OTHERWISE you'll go tangentially

29.

Equation of motion with all 3 methods all 3 equations mathematical y solved

Answer»
v = u + atv² = u² + 2ass = ut + ½at²

where, s = displacement; u = initial VELOCITY; v = final velocity; a = acceleration; t = TIME of motion. These equations are referred as SUVAT equations where SUVAT stands for displacement (s), initial velocity (u), final velocity (v), acceleration (a) and time (T)

Derivation of the Equations of Motion

v = u + at

Let us begin with the first equation, v=u+at. This equation only talks about the acceleration, time, the initial and the final velocity. Let us assume a body that has a MASS “m” and initial velocity “u”. Let after time “t” its final velocity becomes “v” due to uniform acceleration “a”. Now we know that:

Acceleration = Change in velocity/Time Taken

Therefore,  Acceleration = (Final Velocity-Initial Velocity) / Time Taken

Hence, a = v-u /t or at = v-u

Therefore, we have: v = u + at

v² = u² + 2as

We have, v = u + at. Hence, we can write t = (v-u)/a

Also, we know that, Distance = average velocity × Time

Therefore, for constant acceleration we can write: Average velocity = (final velocity + initial velocty)/2 = (v+u)/2

Hence, Distance (s) = [(v+u)/2]  × [(v-u)/a]

or  s = (v² – u²)/2a

or 2as = v² – u²

or v² = u² + 2as

s = ut + ½at²

Let the distance be “s”. We know that

Distance = Average velocity × Time. Also, Average velocity = (u+v)/2

Therefore, Distance (s) = (u+v)/2 × t

Also, from v = u + at, we have:

s = (u+u+at)/2 × t = (2u+at)/2 × t

s = (2ut+at²)/2 = 2ut/2 + at²/2

or s = ut +½ at²

30.

Find the value of 125x³ - 8y³ . If 5x - 2y = 6 and xy = 4 . Explain it in detail .

Answer»
{(5x - 2y)}^{2}  =  {6}^{2}   \\  {25x}^{2}  +  {4y}^{2}  - 20xy = 36 \\ {25x}^{2}  +  {4y}^{2} - 20 \times 4 = 36 \\ {25x}^{2}  +  {4y}^{2} = 36 + 80 = 116
{125x}^{ 3}  -  {8y}^{3}  =  \\ (5x - 2y)( {25x}^{2} +  {4y}^{2}   + 10xy)
6×(116+10×4)
6×156=936
31.

A particle P is projected vertically upward from a point in 6 seconds later and the particle Q is projected vertically upward from point a both P and Q reach A7 10 asleep the ratio of maximum height reached by p and q = 64:25 find the velocity of the projection of you in m/s

Answer»

Time taken will be time of ASCENT GIVEN by u/G


Where u is intial VELOCITY and g is ACCELERATION due to gravity


So T=10/9.8=1.02 seconds

32.

Angle between vector A and vectorB

Answer»

The ANGLE between two vectors deferred by a single POINT called the shortest angle which you have to TURN AROUND one of the vectors to the position of co directional with another vector

33.

I am class 10 and am interested in reading about kinematics but the textbooks I bought are 8000 worth they don't have answer for basic question-What is KINEMATICS???

Answer»

An OBJECT is in motion WITHOUT KNOWING its CAUSE
in detail:-
kinematics: it is the branch of physics which deals with the study of motion of the object without knowing the FACTORS of motion

34.

What are the types of transistor biasing?

Answer»

Hey mate!! here is your answer

Bipolar transistor AMPLIFIERS must be properly biased to operate correctly. In circuits made with INDIVIDUAL DEVICES (discrete circuits), biasing networks consisting of resistors are commonly EMPLOYED. Much more elaborate biasing arrangements are used in integrated circuits, for example, bandgap voltage references and current mirrors. The voltage divider configuration achieves the correct voltages by the use of resistors in certain patterns. By selecting the proper resistor values, stable current levels can be achieved that vary only little over temperature and with transistor properties such as β.

The operating point of a device, also known as bias point, quiescent point, or Q-point, is the point on the output characteristics that shows the DC collector–emitter voltage (Vce) and the collector current (Ic) with no input signal applied.

35.

Please help me with the #5th QUESTION ONLY

Answer»

To fill the cycle TYRE,vaccum CLEANER to clean the HOUSE,RESPIRATION(INHALING and exhaling)

36.

The velocity of a moving body changes at a constant rate from 50m/s to 20m/s in 3 Dec. Find acceleration

Answer»

The ANSWER is -10m/s^2.
We KNOW that ,
a=v-u/t,
so here,u=50m/s,v=20m/s & t=3s.
Therefore a=20-50/3= -10m/s^2.

37.

The angle of deviation produced by the glass slab is ................... [ ]a) 0° b) 20° c) 90°d) depends on the angle formed by the light ray and normal to the slab

Answer» ANS is 0° as the ANGLE of INCIDENCE is EQUAL angle of REFLECTION....
38.

A point charge q=10^-11 is placed at 4cm above a square plate (8cm×8cm)having charge density 0.5×10^-8.Find flux related with it??

Answer»

Imagine charge to be ENCLOSED in a CUBE of dimensions 8cm×8cm×8cm whose one face is square plate mentioned in question. For this imaginary cube we can write electric flux through it. Since charge is at centre of this cube we can SAY flux through all faces will be EQUAL (by symmetry) THUS flux through each face will be 1/6 times of total flux.
Since square plate was one of the faces of imaginary cube we know electric flux through it.

Hope it will be helpful.

39.

Can someone please tell me three examples each of all the types of motions?

Answer»

Rotatary ,OSCILLATORY ,LINEAR MOTION

40.

Answer me friends fast

Answer»

Hey mate...


the MOMENTUM of the falling METEORITE increases...as it REACHES the earth.
Causing a TREMENDOUS FRICTION which burns up most of meteorite.

41.

What are transistor biasing?

Answer» TRANSITING biasing is the PROCESS of setting a transistors DC operating VOLTAGE or current condition to CORRECT level so that any AC input signal can be amplified correctly..
42.

How many types of momentum is?

Answer» 2 TYPES ANGULAR and LINEAR momentun
43.

Define atmosephreric pressure

Answer» ATMOSPHERIC pressure is defined as the force per unit area exerted against a surface by the weight of the air above that surface. Atmospheric pressure is measured with an instrument CALLED a "barometer", which is why atmospheric pressure is also REFERRED to as barometric pressure.
44.

How to find the equivalent resistance between face diagonal

Answer»

number: 285

Find the RESISTANCE between DIFFERENT pairs of vertices of a wire cube.

a) between the vertices on the SPACE diagonalb) between the vertices on the FACE diagonalc) between two vertices on one edge







We will denote the resistance of one edge as R.

Hint 1

Hint 2

Analysis

Solution of part a) - Finding the resistance between the vertices on the space diagonal

Solution of the part b) - Finding the resistance between the vertices on the face diagonal

Solution of the part C) - Finding the resistance between the vertices on one edge

Answer

45.

an artificial satellite is moving in a circular orbit of radius 42250 km. calculate its speed if it takes 24 hours to go around the earth

Answer» LET it's SPEED be V which will be constant (CIRCULAR motion).
Circumference of orbit is distance travelled by SATELLITE in 24 hours.
THEREFORE
V×24 = 2π42250
=> V = 2π42250/24 Km/he

Hope it will help.
46.

What is the length of the day in mercury and venus

Answer»

HEY MATE / DEAR , HERE IS YOUR ANSWER..✌✌❤❤

The LENGTH of the DAY in Mercury is :- 1,408 hours.
The length of the day in VENUS is :- 5,832 hours.

47.

Important questions in human eye and colourful world

Answer»

Where the IMAGE is FORM on RETINA
How can we CORRECT MYOPIA

48.

A ray of light travels from an optically denser to rarer medium. The critical angle of the twomedia is ‘c’. What is the maximum possible deviation of the ray?

Answer»

Answer:

Given: A ray of light TRAVELS from an OPTICALLY denser to rarer medium. The critical angle for the two media is C.

To find the maximum POSSIBLE deviation of the ray

Solution:

Critical angle is the angle of incidence for which the angle of refraction is

2

π

for a given pair of media.

LET θ be the angle of incidence and ϕ the angle of refraction.

When the ray passes from denser to rarer medium, the deviation is δ=ϕ−θ. If θ=C then ϕ=

2

π

and deviation δ=

2

π

−C. This is the maximum deviation. When total internal reflection occurs, the deviation is given by δ=π−2θ. Here δ is maximum when θ is minimum. The minimum value of θ is C.

Hence maximum deviation δ=π−2C.

solution

49.

two swimmers start from same end a of a 200 meter long swimming pool. the faster one reaches the other end b turns back and meets the slower one at a distance of 175 meters from the starting end. where will the slower one be when faster one reaches starting point.

Answer» 150M AWAY from the STARTING POINT
50.

Give some examples of how is friction responsible for energy wastages

Answer» FRICTION is WASTAGE of ENERGY in
BALL bearing
cycle TYRE