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.

Here We Go!!! Bichromatic Light Slit width is 1 mm and distance of select from screen is 1 m.Find minimum distance on screen from centre O where Maxima of both light coincide.​

Answer»

Here,

D = 1m

d = 1nm

\lambda_1 = 6000 \:   A \degree  \\  \\ \lambda_2 = 8000 \:   A \degree

Let us consider that nth Maxima of

6000 A° and

mth maximum of 8000 A° coincides.

So,

\sf y_1 = y_2 \\  \\   \sf\frac{<klux>N</klux> \lambda_1 D }{d}  = \frac{m \lambda_2 D }{d}  \\  \\  \sf   \frac{ \lambda_1}{ \lambda_2}  =  \frac{m}{n}  \\  \\  \sf   \purple{ \boxed{{\bold {m =  \frac{<klux>3</klux>}{4} n}}}}

Put

n = 4 and m = 3

☆ 4th bright fringe of

6000A° and 3rd bright

fringe of 8000A° will be at

same place .

i.e.

Minimum distance from centre where the coinside

is

\sf  \large \: y = \frac{n \lambda_1 D }{d}   \\  \\  =  \sf  \frac{4 \times 6000 \times  {10}^{ - 10} \times 1 }{ {10}^{ - 3} }  \\  \\   \huge  \green{ \bold{ \boxed { \boxed{ \sf y  = 24 \times  {10}^{ - 4} m}}}}

2.

GivenU = 0v = 50cm/seca =5cm/sect = ?s = ?​

Answer»

ANSWER:

what is U and what is V then how i can FIND t and s

3.

Assertion (A): The dimensional formula of a physical quantity is same in any system of units. Reason (R) : Dimensional formula is independent of system of units. (1) Both A and R are true and R is the correct explanation of A (2) Both A and R are true and R is not the correct explanation of A (3) A is true but R is false (4) A is false but R is true​

Answer»

Assertion :

(A) The dimensional formula of a physical quantity is the same in any SYSTEM of units.

Reason (R): Dimensional formula is INDEPENDENT of the system of units.

Explanation:

A:

  • All physical quantities can be expressed in terms of seven basic quantities LIKE mass, length, time, temperature, electric current, luminous intensity, and quantity of substance.
  • The dimensions of a physical quantity and the dimensions of its unit are similar.

B:

  • The dimensions of a physical quantity are independent of the system of units used to MEASURE the quantity.

Hense both A and R are true & R is the correct explanation of A.

Correct option is A

4.

6) The first viriod discovered wasO A) Potato spindle tuber viroidB) AvsunviroidaeООC) Graperine viroidD) Citrus gummy bark viroid​

Answer»

Answer:

A---> POTATO spindle tuber viroid

Explanation:

The first recognized viroid, the pathogenic agent of the potato spindle tuber disease, was discovered, INITIALLY molecularly CHARACTERIZED, and named by Theodor Otto Diener, PLANT pathologist at the U.S Department of Agriculture's Research Center in Beltsville, Maryland, in 1971.

ANSWER FROM CARTOON LOVER ❤️

5.

. What is time period of a geostationary satellite?​

Answer»

Answer:

The TIME period is 23 hours and 56 MINUTES.

6.

What is Water Cycle ? ​

Answer»

Answer:

The SHORT Answer:

The water cycle is the path that all water follows as it moves around Earth in different states. ... Water can be found all over Earth in the ocean, on LAND and in the atmosphere. The water cycle is the path that all water follows as it moves around our planet.

Explanation:

please mark as Brainliest

I will GIVE 5 thanks

7.

a car moving at 50km/h after 15 minutes it is moving at speed of 80km/h find the acceleration of the car!

Answer»

ANSWER:

\\\tt 120 Km h^{-2}

Explanation:

ACCELERATION is defined as ate of change of VELOCITY. MATHEMATICALLY,

\\\tt \dfrac{v_{final} - v_{inital}}{\Delta t} \\\\\tt Here \ acceleration =  \dfrac{80Kmh^{-1} - 50Kmh^{-1} }{15/60 h}\\\\\tt =  \dfrac{30Kmh^{-1} }{0.25 h} = 120 Km h^{-2}

8.

If a coil of metal wite is keptstatinary in a uniform magnetrocfield then-​

Answer»

ANSWER:

The MAGNET will not ATTRACT it

Because they are WEAK METALS.

9.

Thelongtheinbar 2m20°C – incalculateanlength ofwhen heatedincreasealuminuimFrom 0°Ctocoefficient oflinear-82.5 x 10k-kthe thermalenpansion ofvolumewhenaluminuimcaluculate the increasematerialfromthesame0°ct28 .--otheated​

Answer»

ANSWER:

hi

Explanation:

eska ans he but PATA NAHI SALE

10.

The frequency(n) of the piezoelectric crystal is directly proportional to ---Bulk modulusO Youngs modulusdensityo length​

Answer»

EXPLANATION:

ndndjjsnsnsnsnsnsnnsnsjdndnxndndnzndnsnsnn

11.

Why do we need refrigeration and also explain refigerating effect in full detail

Answer»

ANSWER:it used as a preservatory for milk products and some of vegetables

Explanation:

  1. refrigator KEEPS the fruits CLEAN and PURE and KEEP it for some more days
12.

Correct the following sentence.Answer the sentence i fixedpls say me fast​

Answer»

Answer:

4378465246

0000

come only you

13.

An electrical bulb is rated 40 W, 220 V. How many bulbs can be connected in parallel with each other across the two wires of 220 V line, if the maximum allowable current is 8 A?

Answer»

ANSWER:

ELECTRICAL BULB is CONNECT to PARALLEL

14.

Question 6Sabine selected-square feet of an open windowfeet of an open window as standard unit of absorption​

Answer»

CHARGED to each UNIT of PRODUCTION

15.

Which a.c. bridge is used to compare two capacitances?pls answer fast

Answer»

Answer:

The bridge USES for measuring the value of unknown resistance, inductance and capacitance, is known as the AC Bridge. The AC bridges are very CONVENIENT and give the ACCURATE result of the measurement. ... The bridge has four ARMS, one AC SUPPLY source and the balance detector

16.

किस गैस के ग्रहण से दमा जैसी बीमारियां होती है​

Answer»

ANSWER:

सूर्य ग्रहण एक तरह का ग्रहण है जब चन्द्रमा, पृथ्वी और सूर्य के मध्य से होकर गुजरता है तथा पृथ्वी से देखने पर सूर्य पूर्ण अथवा आंशिक रूप से चन्द्रमा द्वारा आच्छादित होता है।

चन्द्रमा जब सूर्य को पूर्ण रूप से आच्छादित कर लेता है तो उसे पूर्ण सूर्य ग्रहण कहते हैं जैसा कि १९९९ के सूर्य ग्रहण में देखा गया। इसके अन्तिम छोर (लाल रंग में) पर सौर ज्वाला अथवा विस्तृत कॉरोना तन्तु देखे जा सकते हैं।

वलयाकार सूर्य ग्रहण (बायें) तब दिखाई देता है जब चन्द्रमा सूर्य को पूरी तरह एक साथ नहीं आच्छादित कर पाता। (जैसा २० मई २०१२ के सूर्य ग्रहण में देखा गया।) आंशिक सूर्य ग्रहण की स्थिति में चन्द्रमा द्वारा सूर्य का कोई एक हिस्सा आवरित किया जाता है (२३ अक्टूबर २०१४ का सूर्य ग्रहण)।

भौतिक विज्ञान की दृष्टि से जब सूर्य व पृथ्वी के बीच में चन्द्रमा आ जाता है तो चन्द्रमा के पीछे सूर्य का बिम्ब कुछ समय के लिए ढक जाता है, इसी घटना को सूर्य ग्रहण कहा जाता है। पृथ्वी सूरज की परिक्रमा करती है और चाँद पृथ्वी की। कभी-कभी चाँद, सूरज और धरती के बीच आ जाता है। फिर वह सूरज की कुछ या सारी रोशनी रोक लेता है जिससे धरती पर साया फैल जाता है। इस घटना को सूर्य ग्रहण कहा जाता है। यह घटना सदा सर्वदा अमावस्या को ही होती है।[1]

17.

2. Determine the radius of gyration of a circular disc of radius R rotating about an axispassing through its centre and perpendicular to its plane​

Answer»

ANSWER:

hii

Explanation:

RADIUS is HALF of DIAMETER

18.

Point charges 5 nC and -2 nC are located at (2,0, 4) and (-3,0,5), respectively.(a) Determine the force on a 1 nC point charge located at (1.-3,7). (b) Find the electric field E at (1, -3,7)?​

Answer»

ANSWER:

FIND the electric FIELD E at (1, -3,7)?

19.

39. Stationary charge produce timeindependent electric field while steadycurrents produce timemagnetic field.none of theseindependentdependentindependent and dependentboth

Answer»

EXPLANATION:

WARNING ❤️❤️ 4680883684 ❤️ PAS- 8484

Come and be eexcited GIRL

20.

Please answer this!!​

Answer»

ANSWER:

sorry i can't wait until NEXT TIME

21.

1. Determine the moment of inertia of a thin circular coin about an axis through its centre inthe plane of the coin.​

Answer»

ANSWER:

wckwcwlvwcnvgwgw. jwbw. KW. wjhww

22.

What is velocity???????

Answer»

Answer:

The velocity of an OBJECT is the rate of change of its position with respect to a FRAME of REFERENCE, and is a function of time. ... Velocity is a physical vector quantity; both magnitude and direction are NEEDED to define it.

23.

5.An electric line of force is the path followed by​

Answer»

Line of force, in PHYSICS, path followed by an electric charge free to move in an electric field or a MASS free to move in a gravitational field, or generally any appropriate TEST particle in a given force field.

24.

Correct answer the followingno nusence pls​

Answer»

Answer:

WO nusence NHI hota vo NON sence hota HAI SIS

25.

Liquids are easy to compress true or false​

Answer»

Answer:

it's true

Explanation:

In most liquids, the particles are less DENSELY PACKED, so they can move around and slide past each other. While a LIQUID is easier to COMPRESS than a solid, it is still quite difficult – IMAGINE trying to compress water in a container. Water is an example of a liquid, and so are milk, juice and lemonade.

26.

Define reference frame​

Answer»

In physics, a frame of reference consists of an abstract coordinate system and the SET of PHYSICAL reference points that uniquely fix the coordinate system and standardize measurements WITHIN that frame. For n dimensions, n + 1 reference points are sufficient to FULLY define a reference frame.

PLEASE MARK ME AS A BRAINLIST AND FOLLOW ME

27.

A man travels a distance of 1.5 towards the east then 2 metre towards the south and finally 4.5 metre towards the south and finally 4.5 m towards the East in for second calculate​

Answer»

Explanation:

Total DISTANCE TRAVELED WILL BE = 1.5 + 2 + 4.5 = 8 m FINAL DISPLACEMENT WILL BE = We can directly MAKE a diagram for 6 m east and 2 m south, the resultant will be same. Final Displacement = √ ( 6 square + 2 square ) = √ ( 36 + 4 ) = √40 m ANSWER = (a) 8 m (b) √40 m

28.

Explain the advantage and disadvantage of solar cells​

Answer»

ADVANTAGES

  1. EASY to PRODUCE electricity
  2. Not CAUSING any harm to the environment
  3. It is a ecofriendly SOURCE of energy
29.

13. Quantity of heat required tochange state of unit mass ofsubstance without change in tempis..O A) Specific heatO B) Latent heatO C) Thermal expansionOD) Radiation​

Answer»

ANSWER:LATENT HEAT is the answer

EXPLANATION:

latnt heat is the CORRECT answer

30.

What is derived quantity?​

Answer»

Answer:

Derived quantities are those that may be expressed in TERMS of base or derived quan- tities by MEANS of the mathematical symbols of multiplication and division only (no addition or SUBTRACTION or any other sign). ... The first group consists of derived quantities, which have proper units.

Explanation:

PLS follow and MARK me as brainalist

31.

What is the results of applying force on an object Pls answer​

Answer»

ANSWER:

the obj. will change it's position or size

Explanation:

DEPEND UPON type of FORCE

32.

Charge on a body is +6.410−19c , how many electrons transferred from this object .​

Answer»

charge of BODY = + 6.41 × 10 ^(-19) C

charge of an e- = - 1.602 ×10 ^ (-19) C

number of e- = 6.41 × 10 ^(-19) / 1.602 × 10 ^(-19)

= 4.012 electrons

33.

Which of the following is not a characteristic of wave function​

Answer»

ANSWER:

The WAVE FUNCTION has no PHYSICAL SIGNIFICANCE.

34.

Save educational poster​

Answer»

ANSWER:

okbebshshsgsyeyvegwgwyegehe

35.

Y for the circuit shown find the totalresistance ?8278100ААААboAM76beroov40​

Answer»

Answer:

why did any friend STAR to stop her from going inside the cave EXPLAIN briefly WHITE is rainy and her family member not tell anybody about the whole

36.

Does the conservation of energy apply for the system of free falling body how​

Answer»

Explanation:

Atmosphere is the thin layer of AIR that surrounds the earth. It is made up of various gases such as OXYGEN, nitrogen, carbon dioxides, dust particles and water VAPOUR. The gravitational FORCE of the earth HOLDS the atmosphere around it.

37.

Find the pressure experienced by a body when a force of 312N acts on an area of 24 sq.m.

Answer»

Explanation:

FIND the PRESSURE experienced by a body when a FORCE of 312N acts on an area of 24 sq.m.

38.

Differenciate when x = (root t + 1 )²​

Answer»

ANSWER:

HOPE it was helpful

Explanation:

LET f(x)=1√x , then y=1uandu=x12 , since √x=x12 . This MEANS we have to differentiate both FUNCTIONS and multiply them. Let's start with y . By the power rule y'=1×u0=1 .

39.

Draw position time graph of two bodies with equal velocities in the same direction.​

Answer»

this GRAPH was PARALLEL to x-axis

40.

Define deforestation ??????​

Answer»

Explanation:

<U>Deforestation REFERS to the decrease in forest AREAS across the WORLD that are lost for other uses such as agricultural croplands, urbanization, or mining activities. Greatly accelerated by human activities since 1960, deforestation has been negatively affecting natural ecosystems, biodiversity, and the climate.

ooye kya hai ye SAB sad quotes kyu post Kar Raha hooooo are u ok or mental hospital le me chaluuu

hehehehehhehehe

sorry

41.

If the planet Saturn is thrown into an ocean, What will happen ? Why ​

Answer»

Answer:

It will float because Saturn is a gaseous planet so it have very less density so it will float

Explanation:

But Saturn wouldn’t exactly float, so much as disintegrate into a haze SURROUNDING the water sphere, with lots of small solid bits, (LIKE the rings) sinking into the water. I expect this would GENERATE a lot of heat and BOIL some of the water into steam for a while, so you’d have a big mixed up cloud of everything.

I think a better question would be how that huge water planet would behave. There are a bunch of different kinds of ice that can exist at high temperatures given the high pressures such a large water planet would have. It might start having fusion at it’s core before it is big enough to float Saturn in it.

42.

Define light. Write any 4 properties of light.

Answer»

Answer:

Light is electromagnetic radiation that has properties of waves. The electromagnetic SPECTRUM can be divided into several bands based on the WAVELENGTH. ... If a single wavelength is present we say that we have monochromatic light. If all wavelengths of visible light are present, our eyes interpret this as white light.

The primary properties of visible light are INTENSITY, propagation-direction, frequency or wavelength spectrum and polarization, while its speed in a VACUUM, 299 792 458 m/s, is one of the fundamental constants of nature.

Hope it helps.

Please mark as BRAINLIEST

43.

Two'sources A and B vibrate with the same amplitude. They produce sounds offrequencies 5KHz and 25KHz respectively. Which of the two waves will havelarger power (energy)?​

Answer»

Answer:

The SOURCE B has more ENERGY as it can VIBRATE the PARTICULAR things more than that of source A

44.

What happens, if the monochromatic light used in Young’s double slit experiment is replaced by white light?

Answer»

Answer:

So if monochromatic light in Young's double-slit EXPERIMENT is replaced by WHITE light, then the waves of every wavelength form their SEPARATE interference patterns. ... HENCE the waves of all colors reach a middle point R in the same phase. So the central fringe is white.

45.

Find the size nature and position of imageformed when an object of size 1 cm is atdistance of 15 cm from a Concave mirror of focallength 10 cm.​

Answer»

Answer:

Hey!!

The given MIRROR is a concave mirror thus sign convention it's focal LENGTH will be negative.

This here

f = -10 cm

u = -15cm

h(height of object) = 1cm

we have to find

size , nature , position of image formed .

Thus using mirror equation :-

1/f = 1/u+1/v

=>1/v = 1/f-1/u

=> 1/v = -1/10+1/15

=> 1/v = -1/30

=> v = -30 { thus image will be formed BEYOND center

Now magnification

m = -(v/u) = h'/h

m = -(-30/-15)

=> m = -2

HENCE the image formed will be real and INVERTED and magnified.

Now m = h'/h

2 = h'/1

=> h' = 2cm

hence the size of the image will be doubled

46.

· Water can be converted into vapour at any temperature. Explain this with oneexample! !​

Answer»

Answer:

Change of a liquid into vapors at any TEMPERATURE below its boiling point is called as EVAPORATION

Explanation:

In the case of liquids, a small fraction of particles at the surface, having higher kinetic energy, is ABLE to break away from the FORCES of attraction of other particles and GETS converted into vapour. This phenomenon of change of a liquid into vapours at any temperature below its boiling point is called evaporation

47.

Find the nature and size of the image of an object placed at a distance of 41cm from q mirror of focal length -15cmplease answer it quick​

Answer»

ANSWER:

the HOUSE and 40517 from MEGA 43 it so MONALISA picture

48.

Why can't we store lemon pickles in an aluminium container?​

Answer»

ANSWER:

\huge\pink{\fbox{\tt{αɴѕωєя࿐}}}

The lemon PICKLE contains acids. Metals like aluminum readily REACT with ACID to liberate hydrogen gas. This can lead to spoiling of the pickle.

49.

Please follow this account pleaseWhat is raw materials u don't have to give the answer ​

Answer»

ᴀ ʀᴀᴡ ᴍᴀᴛᴇʀɪᴀʟ, ᴀʟsᴏ ᴋɴᴏᴡɴ ᴀs ᴀ ғᴇᴇᴅsᴛᴏᴄᴋ, ᴜɴᴘʀᴏᴄᴇssᴇᴅ ᴍᴀᴛᴇʀɪᴀʟ, ᴏʀ ᴘʀɪᴍᴀʀʏ ᴄᴏᴍᴍᴏᴅɪᴛʏ, ɪs ᴀ ʙᴀsɪᴄ ᴍᴀᴛᴇʀɪᴀʟ ᴛʜᴀᴛ ɪs ᴜsᴇᴅ ᴛᴏ ᴘʀᴏᴅᴜᴄᴇ ɢᴏᴏᴅs, ғɪɴɪsʜᴇᴅ ᴘʀᴏᴅᴜᴄᴛs, ᴇɴᴇʀɢʏ, ᴏʀ ɪɴᴛᴇʀᴍᴇᴅɪᴀᴛᴇ ᴍᴀᴛᴇʀɪᴀʟs ᴛʜᴀᴛ ᴀʀᴇ ғᴇᴇᴅsᴛᴏᴄᴋ ғᴏʀ ғᴜᴛᴜʀᴇ ғɪɴɪsʜᴇᴅ ᴘʀᴏᴅᴜᴄᴛs.

ʜᴏᴘᴇ ɪᴛ's ʜᴇʟᴘ ʏᴏᴜ

50.

Please let me the answer. i am giving exam​

Answer»

it's OPTION 1

HOPE it will HELP U