Explore topic-wise InterviewSolutions in Current Affairs.

Answer:

1. Give an example of a unicellular and a multi-cellular organism.

2. How was cell DISCOVERED?

3. Define plant cell and animal cell?

4. How does a nerve cell function?

5. What are vacuoles?

6. Draw a neat diagram of an amoeba.

7. Explain the structure of a cell.

8. Where are chromosomes found in a cell?

9. What are plastids?

10. What is the function of chloroplasts?

1. Why it is dangerous to touch electrical appliances with wet hands?

2. Name substances which make any liquid good conductor of electricity?

3. Name the part of bulb that glows.

4. Does distilled water conduct electricity?

5. Name the gas deposited on negative electrode.

6. How can you test liquids conduct or do not conduct the electricity?

7. Explain why a bulb glows on passing current.

8. What is chemical effect of electricity? Give some EXAMPLES of chemical effects.

9. What are the two methods of testing an insulator or conductor?

10. Write true/False

a. Rubber is an insulator.

b. Electroplating causes rusting.

c. Vinegar can __________ electricity.

1. Name two man-made substances, two natural and two exhaustible substances.

2. Name the gas which is formed when coal is heated in the absence of air.

3. Where was the first oil well drilled?

4. How many substances are found in coal TAR?

5. Name the places where natural gas is found in India.

6. What are exhaustible natural resources? Explain with exampes.

7. What is coal gas? Write its uses.

8. What is petroleum? What is it called black gold?

9. Describe the process of formation of coal in the nature.

10. What is main component of LPG?

1. What is the difference between burning of a candle and burning of coal?

2. Classify fuels?

3. Write name of some incombustible substances

4. What do you mean by an ignition temperature?

5. What are the requirements to produce fire?

6. How many types of combustion are there?

7. Give examples of the substances which give flame.

8. What substances are used to extinguish fire in case of electric short circuit?

9. Which zone of flame has highest temperature?

10. Explain structure of flame.

11. What are the characteristics of good fuel?

12. What are the ill effects due to the INCREASING consumption of fuel?

13. Draw a diagram to explain that air is essential for combustion.

14. What are the products of any fuel?

1. Identify the agent exerting force and the object on which it acts when a piece of lemon is squeezed between fingers and juice come out.

2. Explain that force are due to an interaction between objects.

3. What are the effects of force?

4. Explain contact and non-contact forces?

5. Explain the force of gravity?

6. If the area of head is 15cmX15cm, how much air (in weight) would you carry on your head?

7. Does the APPLICATION of force result in change of state of motion of the object.

8. What do you meant by pressure? How can we increase the pressure by exerting same force?

9. Give two factors which affect the effect of changes?

10. How to describe state of motion?

1. Does friction depend on the nature of objects?

2. Which type of surface produces more friction?

3. Which type of surface produces less friction?

4. Which is less sliding friction or static friction?

5. Why is it difficult to move on a wet marble floor?

6. What would happen when an object starts moving if there is no friction?

7. Give two examples where friction is undesirable?

8. Our hands become warm when we rub them. Why?

9. Why do we shape aero planes like that of bird?

10. Write some methods to reduce friction?

11. Write various types of friction.

12. What is a fluid friction? Write the factors on which fluid friction depends.

1. Where does the image form is our eye?

2. What is the shape of human eye?

3. What is the working of iris?

4. Define normal?

5. Define angle of incidence?

6. What is a reflection of light? State laws of reflection.

7. How will you prove that the angle of incidence is equal to the angle of reflection.

8. Explain the structure and working of a human eye.

9. What is blindness? How many types of blindness do we know about?

1. What are viruses? Name some common diseases in human caused by virus.

2. Explain the formation of curd from the milk.

3. Mention some beneficial effects of bacteria.

4. Explain the discovery of Pencillin.

5. How do microorganisms spoil food?

6. What are carriers of disease causing microbes? Explain with the help of two examples.

7. Explain nitrogen cycle and draw a schematic diagram of nitrogen cycle.

8. Name some common plant diseases their causative microorganisms mode of transmission with the help of the figures.

9. Explain the uses of Bacteria, Fungi and Algae.

10. What are food preservatives? Explain some common food preservatives.

1. Which gas is responsible for greenhouse effect?

2. What is global warming?

3. Which fuel is pollution free?

4. What are alternative renewable fuels?

5. What do you mean by �Van Mahotsav�?

6. What is water pollution and its causes?

7. What is smog?

8. What are effects of global warming/

9. What is portable water? Write its properties.

10. Explain process of water treatment to make it drinkable.

ANSWER:

the HEIGHT of the TOWER is 1732 or 1000under ROOT 3

ANSWER:

the LOAD is distributed.

more AREA

LESS PRESSURE

ANSWER:

no....................

ANSWER:

USE the edit icon to PIN, add or DELETE clips.

Answer:

Freon is the TRADEMARKED name for a LIQUID refrigerant USED in refrigerators as well as air conditioners, heat pumps and other appliances used in heating and cooling. ... Lack of Freon is unlikely, since the refrigerator MAINTAINS a consistent supply unless there is a LEAK in one of its components

Answer:

The radioactive decay LAW states that the probability per unit TIME that a nucleus will decay is a constant, INDEPENDENT of time.

In essence it MEANS that it is impossible to predict when a particular atom will decay. The probability of its breaking down remains constant through the passage of time.It can not be predicted.Because it can decay at any time.The probability of its decay is same at every MOMENT in time.

Explanation:

FIRST we have to CHANGE Time unit in SECOND = 5 × 3600 sec

= 18000 sec

Now we know that

current (I) = charge (Q) / Time(t)

so Q = I × T

= 0.2 × 18000

= 3600 C

Explanation:

The FACTOR or condition that is necessary for HEAT transfer to occur is that two object 'must have different temperature'. Heat always flow or MOVE from the hotter object to the cooler ONE. ... Heat Transfer can occur in three ways: Conduction, Convection, and Radiation.

ANSWER:

DISTILLATION of salt SOLUTION can be done to OBTAIN both the substances

Answer:

Hence it is clear that electric intensity at any point OUTSIDE the spherical shellis such, as if the ENTIRE charge is concentrated at the centre of the shell. As there is no charge inside thespherical shell, Gaussian SURFACE ENCLOSES no charge. Hence the field inside the spherical shell is always zero.

Answer:

force APPLIED on a moving truck with high speed... when my father STARTS speaking... EVEN if force is applied.... he doesn't stop

Answer:

It was 1949 and the neutrino definitely existed on paper.

When it came to equations and paper, there was no getting away from this little particle. People had known it existed since 1931, when Wolfgang Pauli was studying beta decay. During beta decay, an atom emits an electron (or a positron), but Pauli NOTICED that it emitted this electron in a wide and continuous spectrum of different energy LEVELS. It was almost as if the electron were sharing the total energy with another particle, each CARRYING a proportion. Three years later, Enrico Fermi confirmed the existence of a particle in his comprehensive theory of radioactive decay. According to Enrico Fermi, this particle could do impressive things. It could, for example, turn a proton into a neutron. When a proton captures a neutrino, it turns into a neutron, and in the process gives off a positron.

ANSWER:

question of force

1 what is force ?

(push ) (pull)

( pressure) ( both a and b)

2 force is INTERACTION between

two object ONE object

three object no object

Answer:

On heating, the strip will. (a) REMAIN ... A uniform metallic rod ROTATES about its PERPENDICULAR BISECTOR. If it is heated uniformly to raise its ... (C) its speed of rotation remains same.

HIIIII............s exiet

The principle of HOMOGENEITY is that the dimensions of each the terms of a dimensiional equation on both sides are the same . Any equation or FORMULA involving dimensions (like mass, LENGTH, time , temperature electricity) have the terms with same dimensions

hope it helps you
PLEASE mark as BRAINLIEST

ANSWER:

speed=distance/time

=200/5

=40km/hour

Answer:

9.99m is the DISTANCE COVERED by the ELECTRIC TRAIN

Answer:

Due to the anomalous expansion of WATER... the VOLUME of water INCREASES as the temperature goes down below 4 degree celcius... due to which most of the TIMES in WINTER... the pipes and veins crack...

Answer:

actually this is quite difficult to understand but I'll try my best to explain you

Explanation:

see black HOLE it's formed when a start collapses under it's weight. you MUST be KNOWING that black hole sucks the matter which it interact s with........ so where must this all matter go..... it must be going somewhere as energy is to be conserved....... and the whole entropy of universe is constant..... so scientist recently discovered WHITE hole which seems to EJECT matter which was supposedly sucked by black hole....... I'll tell you more on this if u understand this first.... any anytime

Answer:

LASER STANDS for Light AMPLIFICATION by STIMULATED EMISSION of Radiation.

Answer:

The area of application of load is LESSER in sharp knife, so the force gets concentrated in one STRAIGHT line along the sharp EDGE, hence cutting takes place. While in case of BLUNT knife, the force gets distributed in a larger area comparatively, so cutting cannot TAKE place.

Answer:

Explanation:

Figure above SHOWS the initial DIRECTION of velocities of A, B and C i.e. when A, B,C are at the ends of an equilateral triangle of side 'a' each.

The velocity of A is along AB. So, as B moves, then the direction of velocity of A changes continuously towards the direction of B.

Similarly, the velocity of B is along BC and velocity of C is along CA.

The component of velocity of B along BA = V cos60o =  

So, the effective SPEED with which A and B approach each other  

Time taken in reducing the SEPARATION AB from 'a' to zero is  

Since all three particles A, B and C move with same constant speed v, hence C will also meet A and B at the same time.

ANSWER:

WRITE DELTA and USE it..EXAMPLE delta

Answer:

the modulation of a wave by VARYING its amplitude, used especially as a MEANS of broadcasting an audio signal by COMBINING it with a RADIO CARRIER wave.

HOPE IT HELPS YOU ❤❤

Answer:

actually you know pressure is EQUAL to FORCE per UNIT area SEWING sharp knife area is less the pressure will be more so it is easy to CUT with a sharp knife

Answer:

to SHOW difference of two things

EXPLANATION:

for EX. DELTA t is the difference of GIVEN time

ANSWER:

Balance FORCES are two forces acting in opposite directions on an object, and equal in size. Anytime there is a balanced FORCE on an object, the object stays still or continues MOVING continues to move at the same speed and in the same direction.

❤️❤️❤️❤️❤️❤️❤️❤️

ANSWER:

CONSTANT or not, if the acceleration is in a different direction from the velocity then yes, direction and therefore velocity will change. Both acceleration and velocity are VECTORS and if you change the direction of a VECTOR velocity, EVEN if the magnitude (speed) is the same it is still a change in velocity.

Answer:

average velocity is 0 since displacement is 0 . average SPEED is 48km/hr

Explanation average speed =TOTAL distance / total time

let distance from a to B is X then total distance is 2x.

speed=distance / time,

 time from a to b is x/60 and b to a is x/40,

then total time x/60+x/40,

average speed=2x/(x/60+x/40)

                         =48km/h

EXPLANATION:

ACCELERATION = VELOCITY/ TIME

= 20m/s ÷30s

= 0.66 m/s^2 ( ANS)

EXPLANATION:

pulley FETCHING water from the well. When the BUCKET is moving UPWARD.

ANSWER:

and i am ANSWERING QUESTIONS

Explanation:

On an Icy ROAD there is less FRICTION between the wheels and the road. Also there is a thin LAYER of WATER on the ice making it more slippery.

HELLO!!!!!

HERE IS YOUR ANSWER

The value you expect to get in a statistical experiment is the mean. If you toss a COIN 10 TIMES, you expect to get 5 HEADS and 5 tails. The mean is often called the "EXPECTED value" or the "EXPECTATION value".

HOPE IT WILL HELP YOU.....

THANK YOU!!!!

ANSWER:

Lenth

TIME

And force its FUNDAMENTAL QUANTITY

Power of lens is the reciprocal of focal LENGTH of the lens.

It is measured in Diapoter(D).

1D is the power of lens WHOSE focal length is 1m.

D = 1/f (in metres)

The power of concave lens is in negative and that of CONVEX lens is positive.

Cheers!

If two equal forces act in the opposite direction on an object, the NET force ACTING on it is zero

The equal and opposite forces CANCELS each other out and the body remains where it was before.

Cheers!

ANSWER:

boom

Explanation:

for just POINTS NON

ANSWER:

nooooo....................

I THINK the ANS is B i.e. 3R/2

Explanation:

a= 1 ms-2

USE F= ma hope it WIL help U

The colour of headlights that is USED in carin a FOGGY DAY is YELLOW.

ANSWER:

when TWO BALLOON MEET each other then it will BLAST

u=0,V=?,t=?

v=u+at

=0+9.8*5

=49 m/s.

Answer:

average VELOCITY in on REVOLUTION

EXPLANATION:

CORRECT option is b

ANSWER:

Hey GUYS

EXPLANATION:

Distance is a scalar quantity that REFERS to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.

MARK ME AS A BRANILIST

EXPLANATION:

GIVEN radius =R = 1mm =

resisitivty =$ =

length =L = ? , resistance R= 20 OHM .

using formula R=$l/a

Area = a =

therefore a =

therefore ,

length = l = a × R / $

l = 31.4 meter ...