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.

An elastic material is elongated by 10 mm by a constant force of 100N. IN equilibrium, heat produced is(A)0.50(B)1J(C)2)(D zero​

Answer» HEAT produced = work done = FORCE*DISPLACEMENT heat produced=100N*(10/1000)m=1joulefollow if I was of some help to U......
2.

What is mirage and define the phenomenon behind the formation of a mirage.(4marks)​

Answer»

happen when the ground is very hot and the air is cool. The hot ground warms a layer of air just above the ground. When the LIGHT moves through the COLD air and into the layer of hot air it is REFRACTED (bent). A layer of very WARM air near the ground refracts the light from the sky nearly into a U-shaped bend.hopes it help you follow me

3.

Under Hooke's limit if o is stress and E is strain and modulus of elasticitybeing M then​

Answer»

of ELASTICITY M is given by= stress/ strainM=0/E=0this is the CASE of perfect PLASTIC MATERIAL...

4.

In hypothetical elastic substance stress-stain (0 - € )curve is given, Energy started per unit volume of material is (when stress is 100Pa)100 Pao37°е(A)6.67 kJ/m(B)3kJ/m(C)1.33 kJ/m(D)10kJ/m​

Answer» E for this QUESTION ANSWER
5.

Find out the dimension of absolute permittivity

Answer»

M^-1 L^-3 T^4 A^2 MAY Be this is your REQUIRED ANSWER...

6.

A tin can collapse if all air inside it is taken out

Answer»

Evacuating most of the air from inside a tin can removes the outward-pushing PRESSURE, which leaves only the crushing force of the air outside to ACT on the tin can(The high pressure outside exerts more pressure than the low pressure inside). ... The result is that the tin can collapses when the air inside is removed.. Pls follow me and have a NICE DAY. ❤️

7.

N moles of an ideal gas undergoes a thermodynamics process in which pressure of gas varies linearly with the with the volume of gasas shown in figure. The maximum temperature of the gas during thexPVprocess is 4nR Then the value of xis2PolPot--2V​

Answer»

Explanation: First, you can CONSIDER that the entire term: RT∙e −a ⁄RTVm (Vm−b) must have units of PRESSURE. HOWEVER, it is EASIER to note that (Vm − b) is a sum and thus "b" has the same units as Vm: m3 /mol. Last, you should know that the argument of an exponential cannot have units; thus a RTVm is unitless. This means that "a" must be J∙m3 /mol2 .

8.

The use of plastic carry bags having Thickness below the stipulated level has been prohibited .In which unit is the thickness of such bags expressed ? ​

Answer»

the THICKNESS of such BAGS is EXPRESSED in MICRONS

9.

in one system the speed is expressed in kilometre per hour find the value in SI system with the help of dimensional analysis if the speed of a car is given by 54 km per hour​

Answer»

MⁿLT-¹Explanation:gmsuwdvhddoir

10.

When u heat any object up it ______​

Answer»

When U HEAT any OBJECT up it TEMPERATURE.. Explanation:I hope it help u....... ❤❤❤❤❤

11.

Derive the three equations of motion from the speed-time graph graphically.​

Answer»

In the book.Explanation:PLEASE THANKS me and MARK me as brainlist.Please it is my HUMBLE REQUEST.

12.

Expression of E for field to be electrostatic electric field​

Answer»

ct expression of for field to be electrostatic electric field is Therefore, option (1) is correct.Explanation:Electric field produced by a static charge is called electrostatic electric field. Electrostatic electric fields do not change with time.If we consider the options, all options EXCEPT the first option has expressions of x, y z in their electric field vectori.e. the electric field changes with position but in the first option, the electric field is constantFor a stationary charge electric filed will change with change in position w.r.t. the charge but for a non-stationary charge, the electric field MAY REMAIN constantTherefore, the correct option is option (1)Hope this answer is helpful.Know More:Q: Difference between electrostatic field and electric field ?Click Here: brainly.in/question/7968007Q: Can electrostatic POTENTIAL at a point, be ZERO, while electric field at that point is not zero? Justify your answer.Click Here: brainly.in/question/8573562

13.

Please solve this question Class 9 Follow me

Answer»

Its 10.8hope this helps.BTW...I'm in 10TH

14.

Find out how many kilometre is one light year and write it down in your science diary ​

Answer»

9.461×10¹² KmHope it HELPS you THANKS!!

15.

from the adjoining position time graph of two particle A and B.The ratio of velocities Va:Vb will be​

Answer»

The displacement-time graph for two particles A and B are ... Va : VB = Tan30 : Tan45 = (1/√3) : 1 = 1 : √3 ... The VELOCITY ratio of both will be calculated by ...please mark as BRAINLIESTPLEASE FOLLOW me

16.

the angular position of a point at which electric field of an electric dipole is normal to its dipole moment vector is​

Answer»

(theta) =tan^-1((2)^(1/2))Explanation:See the IMAGE. Hope it HELPS. Please mark as brainliest PLEASEEEEE

17.

1.2 The weight of a corner object is 44 g - wt when it is completely immersed in a liquid of relative importance. The same object weighs 50 g - wt when completely immersed in water What is the mass of the friend?​

Answer»

_(gujhei753n SKI j65+3

18.

What is the pressure on the bottom of a cylindrical vessel of diameter 28 cm containing 30-87 of mercury ? (Relative density of mercury 13.6)​

Answer»

please likeExplanation:A CYLINDRICAL vessel is filled with equal amounts by weights of mercury and water. The TOTAL height of the two layers is 29.2 cm. The PRESSURE of the liquid at the BOTTOM of the vessel is:( SPECIFIC gravity of mercury is 13.6)

19.

The transfer of heat through a gas or vacuum​

Answer» HEAT conventionExplanation:is this QUESTION COMPLETE???
20.

The given graph shows variation (with distance r from centre ) of​

Answer» ANSWER WOULD be 3 POINT I THINK so
21.

Whar is Electric field ?​

Answer»

tion:Electric field is defined as the electric FORCE per unit CHARGE. The direction of the field is taken to be the direction of the force it WOULD exert on a positive test charge. The electric field is RADIALLY outward from a positive charge and radially in toward a negative point charge.Mark me as a brainlist THANKYOU

22.

electrolysing K2SO4K2SO4 solution using inert electrodes, 1.68L(STP)1.68L(STP) of gases was obtained. How many moles of MnO−4MnO4- could be reduced to Mn2+Mn2+ by the same quantity of electricity?​

Answer»

which class 7 or 11 PLEASE send me you number all so

23.

What is opitcal centre of a lens​

Answer»

tion:a point on the axis of a lens that is so located that any ray of light passing through it in passing through the lens suffers no net DEVIATION and that may be within, without, or on EITHER SURFACE of the lens.Please MARK me as brainliest if it HELPS and follow me

24.

I need help with questions a b c d

Answer» SEND NORMAL PHOTO of QUESTION
25.

What is the equivalence capacitance for the circuit shown below

Answer»

Just as we can simplify a network of resistors by finding its equivalent RESISTANCE, we can simplify a network of CAPACITORS by CALCULATING the equivalent capacitance. For complicated circuits, we may need to work piecemeal, finding the equivalent capacitance of smaller sections of the circuit before finding the total equivalent capacitance.If several capacitors are in parallel, then the equivalent capacitance is just the sum of EVERY capacitor:If the capacitors are in series, we need to use a different formula to find the equivalent capacitance:please follow meMark as brainliest ANSWER

26.

A bus decreases its speed from 80 km h–1 to 60 km h–1 in 5 s. Find the acceleration of the bus. Please answer the question I want to verify.

Answer»

Explanation:Solution,Here, we haveInitial velocity, U = 80 km/h = 80 × 5/18 = 22.2 m/sFinal velocity, v = 60 km/h = 80 × 5/18 = 16.6 m/s.Time taken, t = 5 secondsTo Find,Acceleration, a = ???According to the 1st EQUATION of motion,We KNOW that,v = u + ATSO, putting all the values, we getv = u + at⇒ 16.6 = 22.2 + a × 5⇒ 16.6 - 22.2 = 5a⇒  - 5.6 = 5a⇒ - 5.6/5 = a⇒ a = - 1.12 m/s²Hence, the acceleration of the bus is - 1.12 m/s².

27.

How can emotions be regulated?please follow me​

Answer»

tion:Make routines the child resists as predictable as possible. ...Use humor to defuse UNPREDICTABLE events. ...HELP them wait their turn. ...Count it out. ...Pay more attention to desired behaviors than undesirable ones.Mark me as a BRAINLIST THANKYOU

28.

. How are memories stored and retrieved?​

Answer»

tion:After consolidation, long -term MEMORIES are STORED throughout the BRAIN as groups of neurons that are primed to fire TOGETHER in the same pattern that CREATED the original experience, and each component of a memory is stored in the brain area that initiated it (e.g. groups of neurons in the visual cortex store a sight .

29.

An electrical appliances rated 15210 is connected to 250 V main calculate. 1 the current drawn .2 the cost of electrical energy at Rs2.50 per k WH.3 the cost of electrical energy at Rs. 2.50 per k Wh. ​

Answer»

hope you LIKEAND please subscribe my channel armed FORCE Gamer

30.

To lift a body of 100gm we need to apply force of about 1N.Is it true or false?

Answer»

it is not TRUE but if we USE aproximation than its EQUAL to on newtonExplanation:F= MAF= 0.1*9.8F= 0.98

31.

Why do we sleep and dream?​

Answer»

sleeping is very much IMPORTANT for us as it refreshes our brain and helps us to be prepared for the next day. And when we sleep the UNCONSCIOUS mind gets ACTIVE that's why we DREAM and generally we dream off what we have done TODAY .

32.

Prove that E = mc^2​

Answer»

s HELPFUL.....PLEASE MARK it BRAINLIEST..

33.

Unit of Permeability of vaccum​

Answer»

tion:The RECIPROCAL of magnetic PERMEABILITY is magnetic reluctivity. In SI units, permeability is measured in henries per meter (H/m), or equivalently in newtons per ampere SQUARED (N⋅A−2).

34.

Explain the principle on which transformer works.​

Answer»

tion:WORKING PRINCIPLE: TRANSFORMER works on the principle of Mutual INDUCTION between two windings (Primary and secondary) LINKED by common MAGNETIC flux. When source of alternating voltage is connected to the Primary coil the magnetic flux produced in primary induces flux in secondary coil too. The frequency remain same.Mark me as a brainlist thankyou

35.

A liquid changes into gas on obsorpton of heat . GIVE REASON pls dont spam ​

Answer»

because of EVAPORATION it occursmark as BRANLIEST

36.

A wheel turns through 50 rotations per minute. a) How many revolutions does it make in an hour? b) How many degrees does it turn through in one second?

Answer»

a)3000b)8.3 degreesExplanation:a) ROTATION per minute = 50   MINUTES per hr         = 60   rotation per hr          = 50 x 60                                     =3000b) rotation per minute = 50   seconds per minute = 60   one rotation              =360 degree   degrees per second =50 x 60/360                                       =8.3 degreespls mark  me as the brainlest PUT thankscomment if any doubts

37.

A liquid changes into gas on obsorpton of heat . give reason .pls don't spam ​

Answer»

▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁ A liquid changes into gas on obsorpton of heat . give reason .▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁ As the molecules at the surface of a liquid absorb heat, they begin to move around more quickly. This gives them the energy to break the BONDS that connect them to other water molecules. When the molecules are moving fast enough, they are able to "escape." They leave the surface of the liquid as gas molecules. ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁ If a liquid is HEATED the particles are given more energy and move faster and faster EXPANDING the liquid. The most energetic particles at the surface escape from the surface of the liquid as a VAPOUR as it GETS warmer. Liquids evaporate faster as they heat up and more particles have enough energy to break away.

38.

A man earns $480 for 5 days of full-time work. What is his pay for only 3 of those days?

Answer»

$480. 5DAYS? 3daysx=480×3/5x=$288

39.

A liquid changes into gas on obsorpton of heat . pls dont spam pls answer​

Answer»

nge from a liquid to a gas is KNOWN as VAPORIZATION....plzz mark it as the brainliest answer!!!

40.

Clampstandspringbalance50-bob​

Answer» GOOD morning dear!but what is the question. can you PLEASE explain CLEARLY.
41.

Why is uncertainty in position equal to D Broglie wavelength

Answer»

tion:According to the question, uncertainty in position is EQUAL to DE Broglie wavelength. ... As mentioned in the question, minimum percent error is REQUIRED. So, mΔv×Δx=4πh. By putting the value of Δx from above, we get vΔv=4π1

42.

100 g ice at 0°C is mixed with 10 g steam at 100°C. Find the final temperature and composition.​

Answer»

is HELPS you.If you LIKE my ANSWER PLEASE mark it as brainliest.

43.

The driver of a car travelling with a speed v suddenly applies brake. The speed is halved by the time the car travels a distance of 12m.How much further will the car travel before it comes to rest?

Answer»

Explanation:SEE the image. HOPE it helps. PLEASE mark as brainliest PLEASEEEEE

44.

A cruise ship has enough food to supply 400 passengers for a whole month. How long would the same food supply last if there were 900 people on board instead?

Answer»

Explanation:600

45.

When an object is present at infinity for concave lens always forms ,the image is formed at _______​

Answer» IMAGE formed is Virtual, upright and diminished see RAY diagrams - 1. FORMATION of image by a concave lens when the object is PLACED at infinity When an ... axis is moved along the axis until its inverted image is FOUND at the position of the needle.Explanation:==========================
46.

Output is AV Transformer has N/N,- 5:1. If ac source voltage is 120V and load resistanceis 5k the value of DC load voltage and DC current at bridge rectifier output is,andrespectively.​

Answer»

soory to SAY this that the QUESTION is not COMPLETE first you complete the question then I will ANSWER it

47.

A wire 170cm long has a mass of 68 grams. What is the mass of 50 cm of this wire?

Answer» 170CM. 68grams50cm. ?x=68×50/170x=20grams
48.

33. Vector which are of equal magnitude and same direction are said to be1) equal vectors2) parallel vectors3) negative vectors 4) antiparallel vectors​

Answer» VECTORS which are of equal magnitude and same direction are SAID to be 1) equal vector .More terminology related to vectors :- a) parallel Vectors :- Vector having same direction are called parallel vector.b) Anti parallel Vectors :- Vector having opposite direction aee called Anti-parallel vector.c) Co-INITIAL vectors :- Vector having same initial point are called co-initial vectors. They are also known as concurrent vectorsd) Co-terminus vectors :- Vector having same TERMINAL point are called co-terminal vectors.e) Unit vector :- A vector having magnitude equal to one is called unit vector.f) Zero vector or null vector :- They have zero magnitude.g) Orthogonal vectors :- Perpendicular vectors are called orthogonal vectors.h) Coplanar vectors :- Vector LYING in the same plane are called coplanar vector.
49.

32. Which of the following is not vector 1) displacement 2) speed3) velocity4) acceleration​

Answer» SPEED is not VECTOR EXPLANATION:MARK as BRAINLIEST
50.

Work done in aconstant volumeprocess is​

Answer» WORK DONE in ACONSTANT volumeprocess is(◠‿◕)