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.

Least distance of distinct vision: *increases with increase in age *neither increases nor decreases *decrease with increaser in age *becomes infinite after 60 years

Answer»

e hope this helps you...EXPLANATION: OPTION C) DECREASES with increase in age is the correct option mark me as BRAINLIEST@scwsdwarka

2.

Distinguish between converging and diverging mirrors i.e. differentiate between concave and convex mirrors in points. (At least 3 points of each) ​

Answer» HEY mate here is your ANS. Explanation:In converging mirrors light rays at the focus, while In DIVERGING mirror it diverges the rays. Converging mirrors have positive FOCAL length while Diverging mirrors have negative focal length. Converging mirrors form real,inverted and erect image while Diverging mirrors form erect images
3.

Value of g decreases with altitude with Formula​

Answer»

vitational ACCELERATION decreases with altitude, as shown by the solid LINE in Figure 1 (left). g is equal to 9.5 m/s2 at 100 km altitude, which is 9% LARGER than 8.7 m/s2. However, at 500 km altitude, g is close to 8.45 m/s2, which is close to 3% smaller than 8.7 m/s2.

4.

41. The magnetic field at the centre of a circular loop appears as a) straight line b) curved line c) concentric circle d) concentric ellipse​

Answer»

entric circleHope it's HELPFUL to you ☺️❣️

5.

Assertion reason of twelth class​

Answer» MARK me BRAINLY your POINT will be INCREASE
6.

Two force R and R₂ are acting at right angles to each other. Then their resultant is​

Answer»

The resultant of TWO EQUAL forces ACTING at right angles to each other

7.

What do you understand by the term “electric potential” ? (or potential) at a point ? What is the unit of electric potential ?​

Answer»

The ELECTRIC potential (or potential ) at a point in an electric field is DEFINED as the work done in moving a unit POSITIVE charge from INFINITY to that point . Unit of electric potential is VOLT.

8.

Physics assertion reason​

Answer» ASSERTION = A point charge is about electric field.Explanation:The field at a NEARBY point will increase, WHATEVER be the nature of the charge. REASON: The electric field is independent on the nature of charge
9.

The basic units of SI system are​

Answer»

your answer.hope it helps.please MARK me as BRAINLIST.

10.

While passing through its equilibrium position the speed of body executing SHM becomes: *Zero *Maximum *One third *Minimum

Answer» TION:MAXIMUM is the CORRECT ANSWER
11.

The direction of magnetic lines of force within magnet

Answer»

The direction of magnetic lines of force of a bar MAGNET is from NORTH to south POLE OUTSIDE the magnet and from south pole to north pole inside the magnet.

12.

It bath, speed of a body and radius of circular path,are doubled then centripetal acceleration (a) will be (1)a (2)2a (3)3a (4)4a​

Answer»

what is u r QUESTION make me branlist ANSWER

13.

The current in the adjoining circuit will be?​

Answer» TION:R equivalent = (30+30)+30(30+30)30 = 9060×30 =20Ω∴i= R V = 20*2 = 10*1 ampere
14.

Question No. 1 Which of the following is a unit vector ? ​

Answer»

the UNIT VECTOR of MAGNITUDE is 1

15.

Adding of a vector by rectangular component​

Answer»

Rectangular component method of addition of VECTORS is the most SIMPLEST method to add a number of vectors ACTING in different DIRECTIONS. CONSIDER two vectors making angles q1 and q2 with +ve x-axis respectively. Resolve vector into two rectangular components and . Resolve vector into two rectangular componentsExplanation:please mark me as Brainaliest

16.

Multiplication of a vector by a number​

Answer» TION:The magnitude of the vector is ten times but its. direction REMAINS same.Notehere I have multiply this vector with 10 so it COMES ten times.So,this depends upon which no. is multiplied by vector..
17.

উদ্ভিদদেহে বিভিন্ন ধরনের প্লাস্টিডের ভূমিকা উল্লেখ করাে। পরিবেশ ও বিজ্ঞান অষ্টম শ্রেণি [লির উত্তর লেখাে :​

Answer»

don't KNOW this languageExplanation:SORRY

18.

A body of mass 20g changes its linear momentum from 8kgm/s to 4kgm/s. calculate its work done. please answer this in simple wayI WILL MAKE YOU AS BRAINLIEST ​

Answer»

NGIVENA body of mass 20 g changes its linear momentum from 8 kgm/s to 4 kgm/s. TO DETERMINE The work done.EVALUATIONHere it is given that a body of mass 20 g changes its linear momentum from 8 kgm/s to 4 kgm/s. Mass of the body = m = 20 gm = 0.02 kgInitial momentum = 8 kgm/sFinal momentum = 4 kgm/sThus initial kinetic energy Final kinetic energy Hence the REQUIRED work done ━━━━━━━━━━━━━━━━Learn more from BRAINLY :-1. find the speed of SOUND in air at 50 degree C and 70 dgree C (take speed of sound 332m/s) brainly.in/question/406067142. A simple pendulum has period 4 s. The LENGTH. of the string of the pendulum will be (take g = 10 m/s2 and 1T2 = 10) brainly.in/question/36767516

19.

There is a block and tackle with 4 pulleys, 2 above and 2 below the hook. The effort applied is in upward direction. Since there will be 5 tension forces lifting the load, on calculations the M.A. comes 5. But, it has been said that due to the upward effort applied, the velocity ratio is also greater than the number of pulleys i.e., 4 ...How do we find the velocity ratio??????​

Answer» ESSENTIAL fatty acid (EFA) DEFICIENCY is rare, occurring most often in infants fed diets deficient in EFAS. Signs include scaly dermatitis, alopecia, thrombocytopenia, and, in children, intellectual disability. Diagnosis is clinical.The nasal cavity is the inside of your nose. It is lined with a mucous membrane that helps keep your nose MOIST by making mucus so you won't GET nosebleeds from a dry nose. There are also little hairs that help filter the air you breathe in, blocking dirt and dust from getting into your lungs.
20.

YOU DIDN'T ATTEMPT A = i + 2 - 3k, when a vector B is added to A we get a unit vector along the x-axis. The angle which E makes with the z-axis will be​

Answer» TION:i don't KNOWI don't KNOW
21.

How to find total time taken when distance at a time is given

Answer»

To solve for time, divide the distance traveled by the rate. For example, if Cole DRIVES his car 45 km per HOUR and travels a total of 225 km, then he traveled for 225/45 = 5 hours.

22.

One watt an electric current can also be represented as​

Answer» EONE sit on plastic CHAIR and without telling him or her beat the chair with towel he or she will feel electric CURRENT.. u CANE also do this Explanation:this is best explanation without coping from góógle so mark as BRAINLIEST
23.

Calculate the drift speed of an electron in a copper wire carrying a current of 1 A and cross sectional area A= 10-6m2 [n = 8.5 x 1028 m-3​

Answer» SEE the ATTACHMENT ☺️Explanation:HOPE it will HELP you
24.

The two thigh bones, each of area 10 cm support the upper part of a human body of mass 40 kg.Estimate the total pressure sustained by the bothbones. Apply, formula for weight, W = mx 9.8.please give me th answer ​

Answer»

Here is the solutionExplanation:The mass of the UPPER part is 40kg and the value of g = 10ms−2 . THEREFORE, F=mg=(40)(10)=400N. Due to this force, the upper part will exert a PRESSURE on the cross section of the femurs. It is given that the AREA of the cross section of each thigh is 10cm2=10(10−2m)2=10−3m2.

25.

How to find force if velocity and acceleration is given​

Answer»

ce formula is defined by Newton's second law of motion: Force exerted by an OBJECT equals mass times acceleration of that object: F = m ⨉ a. To use this formula, you need to use SI units: Newtons for force, kilograms for mass, and meters per second SQUARED for acceleration.

26.

The law used to indicate presence of magnetic lines of force around conductor​

Answer»

tdi5ditstisykzyodykdkyxykdit

27.

The acceleration due to gravity of the Jupiter is 25m/s'. What is its radius if it has the mass of 1.2 x 10" kg?​

Answer»

25m/s2 means SPEED increases by 25m/s every second. Meters per second per second =m/s/s=m/s2.And of COURSE the acceleration pertains to a particular DISTANCE from the center of Jupiter. It has a maximum at or below the VISIBLE surface, and decreases as the distance from center is EITHER increased or decreased.

28.

The force acting on an object is 5j^ + k^and displacement of object is 3i^ + 4j^. Then what is the component of force along displacement​

Answer»

ork=force∗displacement=(3i+4j)(3i+4j)=3∗3i.i+4∗4j.j+4∗3i.j+4∗3i∗j=9+16=25Jas,i.i=j.j=1;i.j=j.i=0 HOPE it HELPS you If your satisfied with the answer make me as BRAINLIEST as POSSIBLE

29.

1. Assertion A magnetic needle which is free to swing horizontally would be in the magnetic meridian and the north pole of the needle would point towards the magnetic North poleReason The lime joining the magnetic poles is tilted with respect to geographic axis of the carth themagneticmeridian at a point makes angle with the geographic meridian​

Answer»

th has only VERTICAL component of its magnetic field at the magnetic poles. Since compass needle is only free to rotate in horizontal plane where H = 0, hence the compass needle MAY stay in any direction. The dip needle rotates in a vertical plane and angle of dip at poles is 90∘. So it will stand vertical._______________________________

30.

A man walks 10 m in the East then 20 m North and then 10 m South. Find the magnitude of displacement from starting point??​

Answer»

22.5hope it HELPS YOUPLS MAKE me BRAINLIST

31.

ANSWER this question can't find the formula For it

Answer» SINCE my FIRST TIME you will
32.

In which case does the velocity ratio exceeds the number of pulleys in a movable pulley?​

Answer»

anical advantageMark as BRAINELIST

33.

State the law of conservation of energy and explain it on a roller coaster​

Answer»

it STATES that ENERGY can NEITHER be CREATED nor be DESTROYED.

34.

what maximum power can be generated from an 11 volt EMF using any combination of a 6.5 ohm resistor and a 9.4 ohm resistor ? ​

Answer»

tion: at 18V you can draw 3A from the source by using a single 6ohm resistor, which will then be drawing:P = V x I = 18 x 3 = 54 WIf you use two of those resistors in PARALLEL, then the POWER is doubled:P = 54 x 2 = 108 WGiven the maximum CURRENT the power SUPPLY can source, you can find a combination of series and parallel resistors than can draw that current.

35.

One of the properties of concave lens is, it A. diverges the light rays B. forms real and inverted image C. is thinner at the edges and thicker at the middle D. converges the light rays​

Answer»

the properties of concave LENS is, A) DIVERGES THE LIGHT RAYS.Why other options are ELIMINATED?Concave mirrors can FORM both real as WELL as virtual images. So, STATEMENT B) is incorrect.Concave mirror are thicker at edges and thinner in the middle, so statement C) is incorrect.Concave mirror diverges the light rays, hence they cannot converge light rays. So, statement D) is incorrect. Hope It Helps.

36.

Hydroelectricity could be better alternative of bio fuel in the context of our country Justify. give logical and describable answer to this question...THANKYOU​

Answer» HYDROPOWER is fueled by water, so it's a clean fuel source, meaning it won't POLLUTE the air LIKE power plants that burn fossil fuels, such as coal or natural GAS. Hydroelectric power is a domestic source of energy, allowing each state to PRODUCE their own energy without being reliant on international fuel sources.
37.

State universal law of gravitation and give its mathematical expression. ​

Answer»

The law of universal gravitation or the universal law of gravitation is RELATED to the masses and the DISTANCE between any TWO bodies in the universe. It is directly proportional to the PRODUCT of the masses between which it acts and the universal gravitational constant G. Formula used: F=Gm1m2r2.Explanation:plz folow me and GIVE me a lot of thanks plz plz

38.

I7 is the latest Intel processor say true or false​

Answer»

Hey MATE here is your answer TRUE Hope this answer HELPS you PLZ mark me as braieliest

39.

If an electroscope is negitively charged leaves And a body with a positive charge is bought near to it. Then the leaves​

Answer»

tion:When a negatively charged object is BROUGHT near an electroscope the CHARGE will induce a positive charge on the leaves. So NOTHING should HAPPEN. If the object touches the electroscope the negative charge will DISCHARGE the leaves that have the positive charge. Then the leaves will collapse.Hope it helps youFo.llow meand mark my answer as Brainlist too..

40.

1. जल के वैद्युत अपघटन में: (1) कैथोड़ तथा एनोड पर एकत्रित गैस का नाम बताइए।(2) एक परखनली में एकत्रित गैस की मात्रा दूसरो से दोगुनी क्यों है ?​

Answer»

your ANSWEREXPLANATION:HOPE it's HELP you

41.

Obtain an expression for the energy consumed in a resistor by the passage of an electric current through it, by a suitable diagram.​

Answer»

Obtain an expression for the energy CONSUMED in a resistor by the passage of an electric current through it, by a suitable diagram.A virus is a submicroscopic infectious agent that REPLICATES only INSIDE the living cells of an organism. Viruses infect all TYPES of life forms, from animals and plants to microorganisms, including bacteria and archaea

42.

Definition of Archimedes principles​

Answer»

ᴀʀᴄʜɪᴍᴇᴅᴇs' ᴘʀɪɴᴄɪᴘʟᴇ sᴛᴀᴛᴇs ᴛʜᴀᴛ ᴛʜᴇ ᴜᴘᴡᴀʀᴅ ʙᴜᴏʏᴀɴᴛ ғᴏʀᴄᴇ ᴛʜᴀᴛ ɪs ᴇxᴇʀᴛᴇᴅ ᴏɴ ᴀ ʙᴏᴅʏ ɪᴍᴍᴇʀsᴇᴅ ɪɴ ᴀ ғʟᴜɪᴅ, ᴡʜᴇᴛʜᴇʀ ғᴜʟʟʏ ᴏʀ ᴘᴀʀᴛɪᴀʟʟʏ, ɪs ᴇǫᴜᴀʟ ᴛᴏ ᴛʜᴇ ᴡᴇɪɢʜᴛ ᴏғ ᴛʜᴇ ғʟᴜɪᴅ ᴛʜᴀᴛ ᴛʜᴇ ʙᴏᴅʏ ᴅɪsᴘʟᴀᴄᴇs. ᴀʀᴄʜɪᴍᴇᴅᴇs' ᴘʀɪɴᴄɪᴘʟᴇ ɪs ᴀ ʟᴀᴡ ᴏғ ᴘʜʏsɪᴄs ғᴜɴᴅᴀᴍᴇɴᴛᴀʟ ᴛᴏ ғʟᴜɪᴅ ᴍᴇᴄʜᴀɴɪᴄs. ɪᴛ ᴡᴀs ғᴏʀᴍᴜʟᴀᴛᴇᴅ ʙʏ ᴀʀᴄʜɪᴍᴇᴅᴇs ᴏғ sʏʀᴀᴄᴜsᴇ. MARK me as a BRAINLIEST PLZ

43.

A car makes a displacement of 200 m towards east and then 400 m towards north. Find the magnitude and direction of the resultant. (A) 2075m, tan-1 (2), N of E (B) 20/5m, tan-1/2, E of N (C) 20m, tan-1 (2), N of E (D) 10m, tan? (2), N of E

Answer»

car makes a displacement of 200 m TOWARDS east and then 400 m towards north.To find:Magnitude and direction of resultant?Calculation:Magnitude of resultant be R :So, magnitude of resultant is 200√5 metres.So, direction is tan^(-1){2} N of E.or So, direction is tan^(-1){½} E of N.

44.

The heat energy required to convert 1 g of a liquid at its boiling point into gaseous state without any rise in temperature.​

Answer»

is HELPPLEASE followplease THANKS

45.

The force acting on an object is 5j + k and displacement of object is 3i + 4). Then what is the component of force along displacement​

Answer»

tttt6tytytggggtffttggggttt

46.

The force acting on an object is 5j + k and displacement of object is 3î +49. Then what is the component of force along displacement​

Answer»

tion:The FORCE ACTING on an OBJECT is 5j + K and displacement of object is 3î +49. Then what is the component of force ALONG displacement

47.

Obtain an expression for the energy consumed in a resistor by the passage of an electric current through it, by a suitable diagram. ​

Answer» SRY , but DIAGRAM anhi BAN sakte aabhi...!
48.

. A wind blowing in coastal regions during nigint.​

Answer» TION:hØpe Ït Ìs HELPFUL fØr yØu....
49.

2. What is the cgs unit of Magnetic flux? how it is related?​

Answer»

tion:The CGS UNIT of MAGNETIC flux is Maxwell (Mx) or Abweber (abWb). The fundamental unit of magnetic flux is Volt-seconds. The FORCE acting per unit length on a wire placed PERPENDICULAR (at right angles) to the magnetic field per unit CURRENT is the magnetic flux densityplease give me some thanks

50.

An ant moves on the floor of a room making two displacements. One of magnitude 8 m and another of magnitude 6 m. If the angle between the two displacements is 90° what will be the magnitude of the resultant displacement ? (A) 10m (B) 5.2m (C) 4.8 m (D) 6.8m​

Answer» B 5.2 PLZ MARK me as BRAINLIST