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 box of mass 25 kg starts from rest and slides down an inclined plane 8 metre long and 5metre high. It is found to move at the bottom at7 m/sec. What is the force of friction?​

Answer»

tion:WORK(total) = CHANGE in kinetic energy W(G) + W(f) = 1/2(m)(v)^2 - 0Mgh+ W(f) = 1/2M×4925×10×5 +w =(25×49)/2W = - 637.5 JHope it helps you. Mark it as a brainliest ANSWER

2.

What is displacement reaction..with examples!

Answer» CTION in which a high reactive ELEMENT DISPLACES the LOW reactive element is TERMED as displacement reaction.Examples : CuSO4+Fe→FeSO4+CuCuSO4 +Zn→ZnSO4+Cu
3.

. (4) 1:2896 mL of a mixture of CO and Co, weigh 1.28 gat NTP. Calculate the volume of Co, in the mixtureat NTP.(1) 448 ml(2) 672 ml(3) 224 ml.(4) 500 ml​

Answer»

224 ML if its CO and CO2 u should CHECK your question out

4.

A force of 2500n acts on an area and the pressure excreted is 50 pascal find the Area

Answer» 50 m^2Explanation:PRESSURE = Force/Area, so 50=2500/AA=2500/50A=50 m^2
5.

Average velocity and average speed

Answer» TION:Average VELOCITY = Total DISPLACEMENT ------------------------------- Total Time Average Speed = Total DISTANCE ------------------- Total Time
6.

What happens when disperssion of light does not takes place?

Answer»

When a beam of LIGHT TRAVELLING in one material enters a new material, and when it is perpendicular to the common surface, it goes straight into the new material WITHOUT bending plz follow me plz MARK as Brainliest

7.

a body is thrown vertically upward and takes 5 seconds to reach maximum height the distance travelled by the body will be same in

Answer»

The DISTANCE TRAVELLED by the BODY will be same from up to down and down to up.distance travelled

8.

From a rifle of mass 4 kg, a bullet of mass 50 g is fired with an initial velocity of 35 m per sec calculate the initial velocity of the rifle

Answer»

rnal force is acting HORIZONTALLY on system...THEREFORE initial momentum =final momentum ( you can you this if you WANT to calculate RECOIL speed)but for your question initial velocity of rifle is zero

9.

T=2π(√l÷√g) dimensional formula

Answer»

on the DIMENSIONAL FORMULA of the EQUATION[T]

10.

Plz its urgent answer me4,6,8,5,7i will mark u brainlist​

Answer» TION:SEE the ATTACHMENT......
11.

If the initial speed of a particle is u and its acceleration is given as a = At³, where A isconstant and t is time, then its final speed v willbe given as(1) u + Att(2) 4+ Att(3) u + AB(4) u + Ats​

Answer» TION:HOPE it will be HELPFUL for U...THANKS ❤❤
12.

Daily life examples of guass law

Answer»

Gauss's law states that the NET FLUX of an electric field in a closed surface is DIRECTLY proportional to the ENCLOSED electric charge. ... It was initially formulated by Carl Friedrich Gauss in the YEAR 1835 and relates the electric fields at the points on a closed surface and the net charge enclosed by that surface.fie = Q/Epsilon not

13.

What is ampear circuital law?​

Answer»

this law relates the integrated magnetic FIELD around a closed loop to the ELECTRIC current passing through the loop.James Clerk MAXWELL DERIVED it using hydrodynamics

14.

What is meant by spring force​

Answer»

The spring FORCE is the force exerted by a COMPRESSED or stretched spring upon any object that is attached to it. An object that compresses or stretches a spring is always ACTED upon by a force that restores the object to its REST or EQUILIBRIUM position.HOPE THIS ANSWER WILL HELP YOU..!! #F0ll0₩ M€

15.

The circuit with find the total current flow throughSwitch is open.Switch is closed.​

Answer»

when SWITCH is CLOSED the CURRENT is FLOW that I THINK

16.

What do you understand by the term hul​

Answer»

commiting an act in ORDER to fear someone.It MIGHT be in TERMS of actions(physical) or VERBAL.

17.

State the position of object ? Image and its nature of image formed by a concave lens is exactly half of the seize of the object.

Answer» BEYOND 2F1Nature: REAL and InvertedExplanation:Check out case III of concave lensHope it helps you
18.

Name any five electricalappliances

Answer» TOSTER Ironcomputer ovenrefrigerator
19.

Wht would our world le like if friction does not exist

Answer»

if there is no FRICTION on EARTH we cannot do any of our SINGLE WORK

20.

Y = 2 X + x square + 1 by X + 1 by x cube find DY by DX​

Answer» TION:HOPE it will be HELPFUL for U....THANKS ❤❤
21.

What is the logarithm of 0.010 4/2.4 82​

Answer»

-2.377768437Explanation:LOG(0.0104/2.428) = - 2.377768437

22.

Write two uses of good and bad conductors of heat​

Answer»

Some of the IMPORTANT uses good and bad Conductors of HEAT are given below : ... The handles of kettles and utensils are made of bad conductors of heat such as wood, plastic, EBONITE, etc. ... Building materials like brick, ASBESTOS, mud, grass, etc., are bad conductors of heat.

23.

How does the water remain on a spinning ball???​

Answer»
24.

Equation of straight line is 2 x + 3 Y = 5 slope of the straight line is​

Answer» TION:y=mx+c3y=-2x+5hence by COMPARING we KNOW thatc=5/3
25.

Differentiation of 2 X square + 3 X with respect to X is​

Answer» TION:SEE the ATTACHMENT......
26.

Derive all Newton's law using the second law.​

Answer»

Newton s 2ND law: the product of MASS and velocity . if the net force is increased then the ACCELERATION ALSO increased.

27.

If the force acting on an area will increase,pressure will:-

Answer»

if the FORCE ACTING on an area will INCREASE then the pressure will be DECREASE

28.

Example of the conversion of gas into solid

Answer» DRY ice is the EXAMPLE of conversion of gas into SOLIDS
29.

A total 6*10power46 electrons flow thhrough a current carrying conductor when connected throug an external power supply for 20s find the value of current in the conductor

Answer»

:- 6*10^46 * 1.6*10^-19. = 9.6*10^27 CTIME :- 20stherefore CURRENT =(9.6*10^27)/20 = 4.8*10^26 A

30.

A bomb of mass 6kg initially at rest explodes into two fragments of masses 4kg and 2kg respectively .If the greater mass moves with a velocity a 5m/s ,find the velocity of 2kg masses

Answer»

10m/sExplanation:

31.

Describe the construction of mercury thermometer

Answer»

A mercury thermometer works on the principle of expansion of LIQUIDS with increase in temperature.A mercury thermometer is a thermometer with a bulb in the END and mercury enclosed in a glass.readings are MARKED on the body of the thermometer , outside the glass.hope it helps and pls MARK as BRAINLIEST:)

32.

Please explain me about Effect of pressure on density

Answer»

as the pressure increase DENSITY of any substance also increase DUE to DECREASE in the volume

33.

Y = x cube + 2 X square + 7 x + 3 then DY by DX equals to​

Answer»
34.

A projectile has same range for two angles of projection, when projected with same speed. if time of flight in two cases are T1 and T2 then the range of projectile is 1. 1/2 gT1T22. 1/4 gT1T23. gT1T24. 1/8 gT1T2​

Answer»

2)1/4 gt1t2Explanation:as both are PROJECTED at the same SPEED the theta degree at the MAXIMUM would be 45 degree

35.

if x y z be the distance described by a particle during Pth Qth and Rth seconds respectively .prove that (q-r)x+(r-p)y+(p-q)z=0

Answer»

Just use distance travelled in nth second FORMULA AD MAKE three equations.Sn = u + (1/2)a [2n - 1]

36.

चांद्रयान 2 मधुन माणसे गेली आहेत का???हो की नाही??​

Answer»

xplanation:no MAN has WENT from CHANDRYAN 2

37.

as we all know speed is equal to the distance upon time but why can't speed equals to the time upon distance​

Answer»

tion:because UNITS OT speed are km/hr that is distance UPON TIME but if speed is time upon distance then dimensions of speed will change to hr/km which are not correct

38.

16. A man moves on a horizontal road towards east at a speed of 1 km/hr and the rain appears to himvertical at a speed of 2 km/hr. The actual speed ofthe rain (in km/hr) is(1) 1(2) √2(3) √3(4) V5​

Answer»

√5Explanation:

39.

Chumbakiy kshetra ka matrak kya hota h​

Answer» HH................!!!
40.

military tank moving with the speed in kilometre per hour 5 year summer sale on enemy fan moving towards it the speed of 15 kilometre per hourAmerican going the speed in kilometre per hour for SMS on any time going towards it to the speed of 15 kilometre per hour if its pmsl speed is 150 metre per second what the speed the missile hit the tank ​

Answer» BOUT the ANSWER because the QUESTION is WRONG
41.

The component of a vector A ALONG Y -axix will have maximum valu if

Answer»

the component of vector a ALONG y AXIS will have MINIMUM VALUE if vector a is on the x-axis.that is the component of vector a will be zero.please MARK it as brainliest!

42.

Name the parameter on which the amount of heat produced in a current carrying wire depend

Answer»

ResistanceExplanation:CURRENT HEAT

43.

Principle of homogenity of dimensions ​

Answer»

Principle of homogeneity of dimensions:-)According to this principle, a physical EQUATION will be dimensionally CORRECT if the dimensions of all the terms occurring on both side of the equation are the same. This principle is based on the fact that only the physical QUANTITIES of same KIND can be added or subtracted or compared. Thus, VELOCITY can be added to velocity but not to force and force is added to force but not to velocity.

44.

A man start from the home at & an to his office. He walks witha speed of 2m/s on a road up tohis office 3 km away from his homeHe states in the office up to 4 pmand returned to him bus which movesnon-stop with the speed of 10m/sCalculate part A time taken by aman to reach his office part B time,taken by man to reach his home & Also plot displacement time graph of his Motion​

Answer» PART A :-25min , PartB:-5minExplanation:Part A :-speed=2m/s distance=3km=3000mtime=?speed=distance/timetime=distance/speedtime=3000/2time=1500seconds=25minThe man took 25min to reach his officePartBspeed=10m/sdistance=3km=3000mtime=?time=distance/speedtime=3000/10time=300sec=5minThe man took 5MIN to reach homeThe GRAPH can't be plot on this APP
45.

Physics prime question 9thbstandard​

Answer» E I'm not 9 TH.................
46.

यदि 3m लम्बाई की एक छड़ (y = 0 से y = 3m तक स्थित) का रेखीय द्रव्यमान घनत्व = (2 + y kg/m केअनुसार परिवर्तित होता है, तब y = 0 से छड़ के द्रव्यमानकेन्द्र की स्थिति लगभग है(1) 2m पर(2) 1.7m पर(3) 2.5m पर(4) 2.7m पर​

Answer» R it the ANSWER EXPLANATION: 2.5
47.

If force F , acceleration A and time T are used as fundamental units, The dimensional formula for length will be

Answer» L EXPLANATION:i THINK so it is CORRECT ANSWER
48.

Difference between Absolute pressure and Gauge pressure.

Answer» R Absolute pressure is zero REFERENCED against the perfect vaacum so it is EQUAL to gauge pressure is zero referenced against ambient air pressure , so it is equal to absolute pressure minus Atmospheric pressure , NEGATIVE signs are USUALLY omitted .Hope it's helped you out..... Plz marks as Brainleist answer or verified answer
49.

a shell is fire in at an angle of 30 degree to the horizontal with a velocity of 196 metre per second find the total time of flight and horizontal range​

Answer»

Newton's second law says that when a constant force ACTS on a MASSIVE body, it CAUSES it to accelerate, i.e., to change its velocity, at a constant rate. In the simplest case, a force applied to an object at rest causes it to accelerate in the direction of the force. However, if the object is already in motion, or if this SITUATION is viewed from a moving inertial reference frame, that body MIGHT appear to speed up, slow down, or change direction depending on the direction of the force and the directions that the object and reference frame are moving relative to each other.

50.

If the boiling point of ethanol is 78.37 C what is its condensation point​

Answer»

pure substance condenses at a TEMPERATURE equal to its boiling POINT.-Therefore, ethanol, ASSUMING it is pure, will condensate at the same point at which it BOILS i.e 78.37o C.