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) state in which particles a se insystematie pattern isA solid state B) liquid state c) GaseolD) Alstat​

Answer»

ANSWER:

all is d CORRECT answer

2.

A man starts swimming at time t = 0 from point A on the ground and he wants to reach the point Bdirectly opposite the point A. His velocity in still water is 5 m/s and width of river is 48 m. River flowvelocity u varies with time is given by u = 72 m/s. He always tries to swim in particular fixed direction24.with river flow (given sin74°)25B48mu=t/2 ->Аa) direction in which he should make stroke and the time taken by the man to cross the river​

Answer»

ANSWER:

hkxhdhydud

Explanation:

vxhxhdgdgdg

3.

. An archer shoots an arrow from a bow. Assuming the force exerted by the bow on the arrow is a spring force,in one dimension(a) write an expression of the force exerted on the arrow.(b) solve the equation in (a) and determine the velocity with which the arrow leaves the bow.(c) In three dimension write the expression of the force exerted by the bow on the arrow.

Answer»

ANSWER:

ANSWER

(a) To stretch the bow, the ARCHER APPLIES a force that causes a change in its shape.

(b) The force applied by the archer to stretch the bow is an example of muscular force.

(c) The type of force responsible for a change in the state of motion of the arrow is an example of a contact force..

(d) While the arrow moves towards its target, the forces acting on it are DUE to GRAVITY and that due to friction of air.

4.

What is the horizontal component of a velocity vectorV=24 mls when it makes angle 30 degrees with Y-Axis?​

Answer»

ANSWER:

the h

Explanation:

the HORIZONTAL AXIS will be UCOS THETA

5.

What points do we conculdefrom dimensien at analysis?Explain the principal of homogeneity of dimensions.​

Answer»

ANSWER:

ᴘʀɪɴᴄɪᴘʟᴇ ᴏғ ʜᴏᴍᴏɢᴇɴᴇɪᴛʏ sᴛᴀᴛᴇs ᴛʜᴀᴛ ᴅɪᴍᴇɴsɪᴏɴs ᴏғ ᴇᴀᴄʜ ᴏғ ᴛʜᴇ ᴛᴇʀᴍs ᴏғ ᴀ ᴅɪᴍᴇɴsɪᴏɴᴀʟ ᴇϙᴜᴀᴛɪᴏɴ ᴏɴ ʙᴏᴛʜ sɪᴅᴇs sʜᴏᴜʟᴅ ʙᴇ ᴛʜᴇ sᴀᴍᴇ. ᴛʜɪs ᴘʀɪɴᴄɪᴘʟᴇ ɪs ʜᴇʟᴘғᴜʟ ʙᴇᴄᴀᴜsᴇ ɪᴛ ʜᴇʟᴘs ᴜs ᴄᴏɴᴠᴇʀᴛ ᴛʜᴇ ᴜɴɪᴛs ғʀᴏᴍ ᴏɴᴇ ғᴏʀᴍ ᴛᴏ ᴀɴᴏᴛʜᴇʀ

ᴀᴘᴘʟɪᴄᴀᴛɪᴏɴs ᴏғ ᴅɪᴍᴇɴsɪᴏɴᴀʟ ᴀɴᴀʟʏsɪs

ᴅɪᴍᴇɴsɪᴏɴᴀʟ ᴀɴᴀʟʏsɪs ɪs ᴀ ғᴜɴᴅᴀᴍᴇɴᴛᴀʟ ᴀsᴘᴇᴄᴛ ᴏғ ᴍᴇᴀsᴜʀᴇᴍᴇɴᴛ ᴀɴᴅ ɪs ᴀᴘᴘʟɪᴇᴅ ɪɴ ʀᴇᴀʟ-ʟɪғᴇ ᴘʜʏsɪᴄs. ᴡᴇ ᴍᴀᴋᴇ ᴜsᴇ ᴏғ ᴅɪᴍᴇɴsɪᴏɴᴀʟ ᴀɴᴀʟʏsɪs ғᴏʀ ᴛʜʀᴇᴇ ᴘʀᴏᴍɪɴᴇɴᴛ ʀᴇᴀsᴏɴs:

ᴛᴏ ᴄʜᴇᴄᴋ ᴛʜᴇ ᴄᴏɴsɪsᴛᴇɴᴄʏ ᴏғ ᴀ ᴅɪᴍᴇɴsɪᴏɴᴀʟ ᴇϙᴜᴀᴛɪᴏɴ

ᴛᴏ ᴅᴇʀɪᴠᴇ ᴛʜᴇ ʀᴇʟᴀᴛɪᴏɴ ʙᴇᴛᴡᴇᴇɴ ᴘʜʏsɪᴄᴀʟ ϙᴜᴀɴᴛɪᴛɪᴇs ɪɴ ᴘʜʏsɪᴄᴀʟ ᴘʜᴇɴᴏᴍᴇɴᴀ

ᴛᴏ ᴄʜᴀɴɢᴇ ᴜɴɪᴛs ғʀᴏᴍ ᴏɴᴇ sʏsᴛᴇᴍ ᴛᴏ ᴀɴᴏᴛʜᴇʀ

ʟɪᴍɪᴛᴀᴛɪᴏɴs ᴏғ ᴅɪᴍᴇɴsɪᴏɴᴀʟ ᴀɴᴀʟʏsɪs

sᴏᴍᴇ ʟɪᴍɪᴛᴀᴛɪᴏɴs ᴏғ ᴅɪᴍᴇɴsɪᴏɴᴀʟ ᴀɴᴀʟʏsɪs ᴀʀᴇ:

ɪᴛ ᴅᴏᴇsɴ’ᴛ ɢɪᴠᴇ ɪɴғᴏʀᴍᴀᴛɪᴏɴ ᴀʙᴏᴜᴛ ᴛʜᴇ ᴅɪᴍᴇɴsɪᴏɴᴀʟ ᴄᴏɴsᴛᴀɴᴛ.

ᴛʜᴇ ғᴏʀᴍᴜʟᴀ ᴄᴏɴᴛᴀɪɴɪɴɢ ᴛʀɪɢᴏɴᴏᴍᴇᴛʀɪᴄ ғᴜɴᴄᴛɪᴏɴ, ᴇxᴘᴏɴᴇɴᴛɪᴀʟ ғᴜɴᴄᴛɪᴏɴs, ʟᴏɢᴀʀɪᴛʜᴍɪᴄ ғᴜɴᴄᴛɪᴏɴ, ᴇᴛᴄ. ᴄᴀɴɴᴏᴛ ʙᴇ ᴅᴇʀɪᴠᴇᴅ.

ɪᴛ ɢɪᴠᴇs ɴᴏ ɪɴғᴏʀᴍᴀᴛɪᴏɴ ᴀʙᴏᴜᴛ ᴡʜᴇᴛʜᴇʀ ᴀ ᴘʜʏsɪᴄᴀʟ ϙᴜᴀɴᴛɪᴛʏ ɪs ᴀ sᴄᴀʟᴀʀ ᴏʀ ᴠᴇᴄᴛᴏʀ.

6.

Write down following in decreasing order of their wavelengths :(i) y-rays, (ii) X-rays and (iii) microwaves.​

Answer»

ANSWER:

MICRO WAVE ,. Y RAYS , X RAYS .....

7.

Three resistors of 1ohm,2ohm and 3ohm are connected in parallel. The combined resistance of the three resistors should be​

Answer»

Answer:

1/Rp = 1/1 + 1/2 + 1/3

LCM = 6

1/Rp = (6 + 3 + 2) / 6

1/Rp = 11/6

Rp = 6/11

Rp = 0.54 ohm

Therefore, combined RESISTANCE is 0.54 ohm.

HOPE I HAVE ANSWERED YOUR QUESTION

PLS MARK ME AS BRAINLIEST

8.

19. Draw the graphs showing the variation of photoelectric current with anode potential of a photocellfor (a) the same frequency but different intensities I, > I > Iz of incident radiation, (b) the sameintensity but different frequencies v, > v2 > v, of incident radiation. Explain why the saturation currentis independent of the anode potential.​

Answer»

Answer:

CURVES 1 and 2 correspond to similar MATERIALS while curves and 4 represent different materials, since the VALUE of stopping potential for 1,2 and 3, 4 are the same,For the given frequency of the incident radiation, the stopping potential is independent of its INTENSITY

So, the pairs of curves (1 and 3) and (2 and 4) correspond to different materials but same intensity of incident radiations.

9.

59. A student was given a task to find the density ofa cube whose mass and side are 100 g and 5 cm,respectively. What is his answer?​

Answer»

ANSWER:

wigigonosivvonodknododh

not know

fldmgmkkdkblforu

vksjjlljohcksoddobo7914o9uxlxmxmcbvnadkjklr0rouupiord

shkhlod

Explanation:

sigonmpd pykdsosohf

hfkfisgkkdlmofkofkuobd

gmhhkfksholhe

glgdkjjobkddkyitrjgfjsjfjdjdmvkcldkdld

dfkgkgckxmlafovod

smfkhgkkggk

10.

Example 6.A thief starts his car from a point with an accelerationof 2 m/s?. The police chasing the thief arrives at thepoint 10 s later and continues to chase the thief with auniform velocity of 40 m/s in their car. In what time thepolice's car will overtake the thief's car?​

Answer»

ANSWER:

zutsjtsitsitlso7tsli

Explanation:

9rsiltal7rsp8ts

11.

11. You are given four pulleys and three strings. Drawa neat and labelled diagram to use them so as toobtain a maximum mechanical advantage equalto 8. In your diagram mark the directions of load L,effort E and tension in each strand.What assumptions have you made to obtain therequired mechanical advantage ?[Hint : Three movable pulleys with one fixedpulley)​

Answer»

ANSWER:

d59yfxyuociuciycoycyociyc8y

12.

If kinetic energy k depend on velocity v,acceleration a and density (p)of an object , find the expression for k ..​

Answer»

ANSWER:

k.e. = 1/2mv^2

density = MASS/volume

mass = density×volume or d×v

velocity = a/t where a is ACCELERATION and time is t

so ke = 1/2×d×v×v/t

13.

A 500 ft long 24 AWG soft copper wire is carrying a current of 100 ma . find voltage across the wire.note:::::: answer was not 1.285 it was something more

Answer»

Answer:

i hope it may be help u

Explanation:

Step 1 of 5

A long 24 AWG SOFT copper wire carrying a current of .

From the standard American Wire GAUGE system table, ohm’s PER at

That means 24 AWG wire has per .

CALCULATE the resistance for .

Thus, the resistance is .

Chapter 2

14.

Which object is taken as reference point ? stationary or moving?please help me with this question ​

Answer»

A reference point is a place or object used for comparison to determine if something is in motion. An object is in motion if it changes POSITION relative to a reference point. You assume that the reference point is stationary, or not moving.

hope it HELPS you.

mark as brainlist answer.

STAY HOME

stay SAFE

15.

किसी गोले के आयतन की माप में 6 प्रतिशत की त्रुटि है त्रिज्या के मापन मे कितने प्रतिशत की त्रुटि होगी।(2 Points)642कोई त्रुटि नहीं​

Answer»

ANSWER:

can you PLEASE TRANSLATE to ENGLISH

16.

6. একটি কৃত্রিম উপগ্রহ ভূপৃষ্ঠ হতে 500 km উচ্চতায় বৃত্তপথে ঘুরছে। 100 min সময়ে তা পৃথিবীকে একবার প্রদক্ষিণ করলেউপগ্রহটির কৌণিক এবং রৈখিক দ্রুতি নির্ণয় করাে। পৃথিবীর ব্যাসার্ধ = 6000 km​

Answer»

Answer:

I can't UNDERSTAND yoye question plz ASK in hindi or ENGLISH

17.

Ques1. Fill in the blanks1-__________ are the changes in which we get back to the initial substance by reversing the action.2-Changes that are not desirable to us are called _________--3-A ________ change is temporary are reversible.4-There is an exchange of___________ during a chemical change.5-A __________ refers to the transformation of a substance from one form to another.​

Answer»

Answer:

I. physical CHANGES

ii. CHEMICAL changes

iii. physical changes

iv. shape, COLOR , etc..

v. chemical changes

18.

You leave your house on your bicycle to go visit a friend. At your normal speed of 9 mph, you know it takes you 6 minutes to get there. This time, though, when you have traveled half the distance you realize you forgot a book at home that you were going to return to your friend, so you turn around and pedal at twice your normal speed, get back home, grab the book, and start off again for your friend’s house at 18 mph (imagine you are really fit to pull this off!)(a) How far away from you does your friend live?(b) What is the total distance you travel on this trip?(c) How long did the whole trip take?(d) Draw a position versus time Neglect the time it takes you to stop and turn around, and also the time it takes you to run into your house and grab the book (in other words, assume those changes in your direction of motion happen instantly).​

Answer»

Answer:

AMIT SHAH CHAIRING a meeting in NEW Delh

Explanation:

Amit Shah chairing a meeting in New Delhi

19.

9.which of these is not a requirement of standard unit ?1.It should be of same for all the quantities 2.It should be universally accepted 3.It should be well defined4.It should be fixed with time and place​

Answer»

ANSWER:

answer of this QUESTION is OPTION 1

20.

9. A body is moving in a curved path. Can it have constant speed with a varying velocity?10. The net displacement of a body in a circular motion is zero if it returns back to its initial position. Justify11. An aeroplane takes off from a runway by covering a distance of 1200 m in 90 s. What is the averagespeed of the aeroplane?12. A car is moving with a uniform speed 9.54 km/h. How much distance will it cover in 10 minutes?​

Answer»

Answer:

sorry I don't know

Explanation:

PLEASE MARK me as BRILLIANT ARYAMAN new USER

21.

A car moving over a straight path, covers a distance d with constant aspeed of 40km/h and then the same distance with speed 60km/h , the average speed of car is​

Answer»

Answer:

Given :

▪ A car covers first half of total distance with speed 40kmph and second half of total distance with speed 60kmph.

To FIND :

▪ Average speed of the car.

Concept :

✏ If body covers first half of total distance with speed v1 and second half of total distance with speed V2, then average speed of the body is given by

☞ (v)AV = 2v1v2/v1+v2

✏ Average speed is defined as the RATIO of total distance travelled to the total time taken.

✏ It is a scalar quantity.

Calculation :

→ (v)av = 2v1v2/v1+v2

→ (v)av = 2(40)(60)/(40+60)

→ (v)av = 4800/100

→ (v)av = 48kmph

Explanation:

Mark me as brainlist...

22.

. The spherical mirror used as a reflector in street lights isA) Concave mirrorB) Convex mirrorC) Both (A)&(B) D) None of these​

Answer»

ANSWER:

C).................... Both.............. ..

....... .......

...... ...... ... . ....

23.

Two trains 'A' and 'B' are moving on parallel tracks in opposite directions. Thevelocity of 'A' is twice that of 'B'. They take 18 seconds to cross each other. What arethe velocities of trains A and B ? Take length of train A as 240 m and that of B as300 m.(1) Velocity of A is 72 kmph and velocity of B is 36 kmph(2) Velocity of A is 80 kmph and velocity of B is 40 kmph(3) Velocity of A is 36 kmph and velocity of B is 18 kmph(4) Velocity of A is 29 kmph and velocity of B is 58 kmph​

Answer»

ANSWER:

inko PAHLE NIKAL KE DEKHO

24.

3.Z VERY SHORT ANSWER QUESTIONS:1. ............travel through air.2. Larger vibrations have..........amplitude.is the part of ear visibleoutside.4. You hear a bomb blast 10 seconds after ithappens. Do you agree?5. Similar to light waves, sound waves alsoundergo reflection. True or false?6. Where are the vocal cords located in ahuman body?7. We can get echo in a room of 10 m lengthand width. Do you agree?8. Frequencies below 20 Hz.......... .9. The frequent to and fro movement of anobject about its mean position............ .10. Musical sounds of a specific pitch.......... .11. Amount of force required to maintain the state of motion. ...........12. ........ force exists between two stationary changes a )mechanicalb )gravitationalc) musculard )none of these​

Answer»

Answer:

1. Sound

2. SMALLER

3. Pinna

4. yes , light TRAVEL FASTER than sound .

5.True

6. In the neck REGION , NEAR larynx

7. Yes

8.Infrasonic waves

9.Longitudinal wave

10.Quality or Timbre

11.1N

12.none of these (d)

25.

A cart of mass 100 kg has a velocity of 20 m/s. Calculate its kinetic energy.__________ Joules

Answer»

ANSWER:

KE=mv^2/2

KE=100kg(20m/s)^2/2

KE=20000J....

HOPE it will HELP you ✌️✌️

26.

State the rule to find the direction of magnetic field associated with straightcurrent Carrying conductor.​

Answer»

Answer:

It states that if you holding the current-carrying conductor in your right hand such that the THUMB points in direction of the current, then the direction in which the fingers encircle, gives the direction of MAGNETIC LINES. This rule is also called MAXWELL's Corkscrew Rule.

27.

The range of projectile is 300 m for an angle ofprojection of 30°, if the angle of projection isdoubled, then the range of the same projectile willbea. 100 mb. 200 mc. 600 md. 300 m​

Answer»

ANSWER:

  1. answer is C)600

Explanation:

because if we DOUBLE the angle of projection then the distance ALSO doubled

28.

A hydraulic lift is designed to lift heavy objects of maximum mass 2000kg. the area of cross section of piston carrying the load is 2.25×10 raised to -2 m square what is the maximum pressure the smaller piston would have to bear?​

Answer»

PRESSURE is TRANSMITTED EQUALLY ACCORDING to Pascal's law.

29.

5. .........Weight of an object is the measure ofacting on it(a) muscular force (b) frictional force(c) force of gravity (d) magnetic force6. The pressure exerted by a liquid:(a) increases with depth(b) decreases with depth(c) remains constant everywhere(d) can't say7. A force is applied to an object in thedirection of its motion, its speed will:(a) increase(b) decrease(c) remains same (d) can't say8. Two forces are acting on an object inopposite directions. What will be themagnitude of resultant force?(a) Sum of both the forces(b) Difference of both the forces(c) Product of both the forces(d) None of these9. Is there any force acting on an object kepton a table?(a) No(b) Yes. Friction force(C) Yes. Friction force and force of gravity(d) Yes. Friction force, force of gravityand push exerted by table on the object2 VERY SHORT ANSWER QUESTIONS:1. ..........is used to measureweight of a body​

Answer»

EXPLANATION:

आई डोंट नो डांसर एंड आई एम सॉरी फॉर दैट एंड कैन यू प्लीज फॉलो मी प्लीज प्लीज प्लीज एंड आई एम रियली रियली सॉरी बट आई कांट दिव्यांश आई एम रेली सॉरी

30.

The pressure of gas molecules in a vessel is P. if the mass of each molecule is made one fourth and the RMS speed is doubled the new pressure is​

Answer»

ANSWER:

,

EXPLANATION:

I THINK it's the answer is 4P

31.

CHOOSE Odd one out and give reasson.kg,g,mg,s

Answer»

ANSWER:

HETE is UR ans

ans = s

hope it hepls U

32.

1. Using Superposition Theorem, find the voltage across 3 ohms resistance. (5 marks)406VWw14 V)30202622​

Answer»

ANSWER:

★彡 •♥•♥•♥ PLEASE MARK ME AS BRAINLEAST ♥•♥•♥• 彡★

˙·٠•●♥ PLEASE FOLLOW ME ♥●•٠·˙

33.

26. Speed of a motor bike is 20 m/s. How much distance will it cover in 35 seconds?27. A piece of iron of mass 114 g, has a volume of 15 cm!. Express the density of iron.​

Answer»

Answer:

26) SPEED = 20 m/ s

time = 35 secs

speed = DISTANCE /time

= 20 × 35

= 700m

34.

The number of degrees of freedom associated with an oxygen molecule are(A) 2 Translational and 3 rotational(B) 2 rotational, 1 Translational(C) 3 Translational and 2 rotational(D) 3 Translational and 1 rotational127

Answer»

ANSWER:

The answer is a OPTION B

35.

Which of the following is correct?(A) Vav < Vmp(B) Vmp < Vrms(C) Vav > Vrms(D) VrmsV mp126

Answer»

ANSWER:

The answer is a OPTION B

36.

The resultant of two forces 2 N and 3 N is19 N then the angle between the forces(A) 300(B) 450(C) 60°(D) 40°​

Answer»

4(7)82 \div 25 \frac{?}{?}  \times \frac{?}{?}

the ANSWER is too COMPLICATED but CORRECT so do it OTHERWISE no WAY to do

37.

1. Two solids P and Q of density 3.5 g/cm' and 0.75 g/cm' are placed in a liquid S of density LISWhich solid is likely to float in liquid S and why?​

Answer»

Answer:

decision example MARK me as BRAINLIEST

Explanation:

Volume of solid OBJECT  V=mass/density=10/8 cm3

BUOYANCY FORCE =Vρg=1.75g

Thrust due to Buoyancy =1.75g.

Tension on string =10g−1.75=8.25g

Extra weight=8.25g+1.75g=10g

38.

A particle moving with a uniform acceleration travels 24 metres and 64 metres in first two successive intervalsof 4 seconds each ite Initial velocity is(2) 2 m/s(3) 5 m/s(4) 10 m/s​

Answer»

ANSWER:

1m/s will be the answer by SUBSTITUTING VALUES on EQUATION s=ut+1/2 at²

39.

The pressure of gas molecules in a vessel is P. If the mass of each molecule is made one fourth and the rms speed is doubled, the new pressure is(A)(B) 4P(C) P(D) 2P125

Answer»

ANSWER:

The answer is a OPTION B

40.

What is the specific gravity of themetal, if the piece of metal weighs 150 grams in air and 125 grams in water? |​

Answer»

Explanation:

What is the specific gravity of the metal when it weighs 45N in the air & 28.3N when FULLY submerged in water?

S.G. = weight (or mass) of object / weight (or mass) of same vol of water.

Buoyancy = weight of this DISPLACED water = 16.7 N

SG = 45/16.7

(I’d guess an aluminium ALLOY)

41.

The uncertainity in the position ofmoving bullet of mass 10 gm is 10-5 m.The uncertainity in its velocity is -(A) 5.2 x 10-28 m/ sec(B) 3.0 x 10-28 m/ sec(C) 5.2 x 10-22m/sec(D) 3 x 10-22 m/ sec​

Answer»

ANSWER:

(b) 3.0x10-28m/sec ok plz MARK me as a brainlist

42.

The average kinetic energy of Hydrogen and oxygen are found to be 10 x 10-21 Jand 15 x 10-21 respectively. If the temperature of hydrogen is-23°C. The temperature of oxygen is(A) 375°C(B) 102°C(C) 575 K(D) 333°C122

Answer»

Answer:

  • 375

&&&/'5^;/##"^&*$-&&@6&-6-6&

43.

A CYCLIST IS TRAVELLING AT 15 m per second. SHE APPLIES BRAKES SO THAT SHE DOES NOT COLLIDE WITH A WALL 18 M AWAY.WHAT DECELERATION MUST SHE HAVE ?​

Answer»
  1. Explanation:

ANS - 6.25 m/s²

V final should be zero at or before 18m so after applying 3RD equation of MOTION get the ANSWER.

44.

A person of mass 60 kg is running with the velocity of 20 m/s. what is his power if he competes the race in 30 seconds.​

Answer»

Explanation:

ANSWER

In this their is no external force is acting so center of mass of the system will not MOVE so

M

1

v

1

+M

2

v

2

=0 .... eq1

M

1

=60KG,M

2

=20kg,v

1

=3ms

−1

60×3+20×v

2

=0

⇒v

2

=−9ms

−1

negative sign indicate that trolley move opposite to the direction of the man velocity.

Energy produce by the man is USED to give velocity to himself and the trolley

E=

2

1

M

1

v

1

2

+

2

1

M

2

v

2

2

⇒E=

2

1

×60×3

2

+

2

1

×20×9

2

=1.08KJ

Hence the velocity of the trolley is 9ms

−1

and energy produce by the man is 1.08KJ

45.

A particle starts to move in a straight line with a velocity of 10 ms^1 and acceleration of 2 ms^1 find the position and velocity of the particles ata t=5s b t=10 s​

Answer»

Puiguiu8p¥'o9cucucuicidisisixisxisiwIWkyfcjg,hgxdjg.

46.

Sun surface at 6400K emit radiation at aWave length of 0.75u . A furnace at 327°C willemit through a small opening radiationat a wavelengthof nearly?a) 12u b) 8u c) 0.23u d) 0.0254u​

Answer»

0.23u is CORRECT ANSWER I THINK OK BYE

47.

What would be the reading of ammeter and voltmeter in the given circuit?2 pointsI=1A, V= 2VI=2A, V= 1VI= 3A, V= 2VI= 2A, V = 3V​

Answer»

Explanation:

The JUNK shop was in.loridoer

b). JIM's letter was written in

c). The soldiers had SCHNAPPS and ......... in between the war.

d). Mrs. Macpherson said nothing but stroked the letter ........... with her FINGER tips.

e)...............is the writer of "The Best Christmas PRESENT in the World."

48.

The square of the resultant of two forces 4N and 3N exceeds the square of the resultant of the two forces by 12 when they are mutually perpendicular.The angle between the forces is(A) 30°(B) 60°(C) 90°(D) 120°119

Answer»

ANSWER:

The answer is a OPTION B

49.

A combination of concave and convex lens in contact is placed over a plane mirror. When apin P is placed as shown in the figure, the image is formed at the position of the pin itselfThe focal length of the convex lens is 10 cm. Then the focal length of the concave lens is:a) 40 cmb) 40/3 cmc) 20 cmd) 20/3 cm​

Answer»

Answer:A COMBINATION of concave and convex LENS in contact is placed over a PLANE mirror. When a pin P is placed as shown in the figure, the image is formed at the position of the pin itself. The focal length of the convex lens is 10 CM. Then the focal length of the concave lens is.

Explanation:

50.

........In the paragraph below, write ‘solid’, ‘liquid’ or ‘gas’ in each of the brackets depending onthe substance referred to just before.On a bright sunny day, Riya and Gargi are playing with a ball ( ) in the park. Gargi feels thirsty. So, Riya brings tender coconut water ( ) for her. At the same time, a strong breeze ( ) starts blowing and it also begins to rain ( ). They run back into the house ( ), change their clothes ( ) and then their mother gives them a cup ( ) of hot milk ( ) to drink​

Answer»

Explanation:

On a bright SUNNY day, Riya and Gargi are playing with a BALL (solid) in the park. Gargi feels thirsty. So, Riya brings tender coconut WATER (liquid) for her. At the same TIME, a strong breeze (gas) starts blowing and it also begins to rain (liquid). They run back into the house (solid), change their clothes (solid) and then their mother gives them a cup (solid) of HOT milk (liquid) to drink.