Explore topic-wise InterviewSolutions in Current Affairs.

Answer:

-SINX ( sinxcosx + 1 )

EXPLANATION:

sinx cos^2x + secx cos^2x

=> d/dx(sinx cos^2x + secx cos^2x )

=> d/dx (sinx cos^2x) + d/dx(secx cos^2x)

=> -COSX sin^2x - sinx

=> -sinx( sinx.cosx + 1)

ANSWER:

the answer is BALANCED FORCES because they are EQUAL

SORRY I didn't KNOW sorry

Answer:

The displacement of a moving bodywill be 0 if, after traveling a certain distance ,the moving BODY FINALLY comes back to it's STARTING point.

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ANSWER:

FORCE that actrect OBJECT TOWARDS its CENTER

Answer:0.000000000003 F

EXPLANATION:

ANSWER:

the CAR because there is a CHANCE that it will FALL on the car

ANSWER:

it is a theoritical VALUE the answer is B

ANSWER:

PLASTIC

EXPLANATION:

plastic plastic

ANSWER:

I THINK the answer is OPTION C

EXPLANATION:

i HOPE this MAY HELP you

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Answer:

zero

Explanation:

SINCE since ONE charge PUSHES the 4 microcoulomb charges on other side and another another charge pushes on the other side and the force GETS balanced so the answer is zero

Explanation:

in MEIN SE Koi Bhi NAHIN HAI

HIII I can't understand PLZ WRITE in Hindi AUR English

Answer:

Mass is the MEASURE of inertia of a body while, charge is the measure of the ELECTRICAL properties of the body. Force acting between two masses can be gravitational or nuclear (force binding the protons and neutrons in NUCLEUS), while FORCES between two charges can be electrostatic or gravitational.

Explanation:

Answer:

The BALL will take a TIME of 2.95 s in Earth.

Explanation:

Initial Velocity (u) = 0 m/s

Final Velocity (v) = 29 m/s

Acceleration (a) = 9.8 m/s²

So,

= v = u + at

= 29 = 0 + 9.8t

= 29 = 9.8t

= 2.95 s = t

Hope this HELPS.

EXPLANATION:

ANSWER is in the above PICTURE

Answer:

the RESULTANT by the TRIANGLE RULE as in the PIC SOLUTION for resultant

ANSWER:

120 is the RIGHT answer of your QUESTION

In the law of simple machine,the CONSTANT C indicates the EFFORT lost on friction, when no LOAD is applied.

EXPLANATION:

ANSWER is in the above PICTURE

Answer:

Explanation:

f = m * a

( FORCE) = (mass) into (acceleration)

there fore force required to lift an object of mass 100 GM

= 0.1 * 9.8 ( acceleration due to gravity of earth)

= 0.98 N (newton a unit use to MEASURE force)

Hope it helps you.

ACCELERATION = CHANGE in VELOCITY/ time

A = 80-60/5

20/5

A=4km/hr

acceleration is GIVEN by 4km/hr

ANSWER:

between CENTER of CURVATURE and POLE

Explanation:

since the BALL is RETURNS back to the same position so the total displacement is zero as it is the MIN. distance between the initial and finl position of the OBJECT

ANSWER:

fiufxuf YF yf YR ydccurtd

ANSWER:

i do no know

Explanation:

CURRENT is EQUAL so but POTENTIAL difference is changed

current in first resistance = v/I = 6/1 = 6 amp

pd in second resistance =i× R = 6×2 = 12 volt

heat = v^2/r = 12×12/2 =144/2 =72 joule.

ANSWER:

Which STORY is this?

EXPLANATION:

Given:

Rating of the 1st bulb = 50 W - 230 V

Rating of the 2nd bulb = 100 W - 230 V

To Find :

Which bulb will glow brighter when they are CONNECTED at first in series and then in PARALLEL  :

Solution :

We know that :

Where, P denotes  power , V  voltage and R  RESISTANCE of the bulbs .

So, for the 1st bulb :

Or,

Or,

Similarly for 2nd bulb:

On diving and :

Or,

So,

For series combination:

By Ohm's Law the ratio of voltage drop :

As, Power =

So,

           =

Here in this CASE is double of b , so is GREATER , hence 50 W bulb will glow brighter .

Now for the parallel connection :

Voltage across the two bulbs in parallel connection will be same , so :

So,

Hence,

So , in this case is greater , hence 100 W bulb will glow brighter  .

Hence, in series connection 50 W bulb glows brighter and in parallel connection 100 W bulb glows brighter

EXPLANATION:

yes heart beat is DUE to BEATS production by lub dub sound

ANSWER:

no change

Explanation:

here is your answer BRO

Answer:

if two forces are given then

we can FIND the RESULTANT FORCE by using

PARALLELOGRAM law of VECTORS

dy/dx = 0 (3x) + (X)

Explanation:

first think that 2 has POWER nothing its SIMPLE .. then do diffentiation of it and then MULTIPLY it will the same given power number and add the power's diffentiation

Answer:

Explanation:

Heya..

Refractive INDEX compares the speed of light in a particular medium with the speed of light in vaccum.

It measures the optical density of a medium.

It should not be CONFUSED with the mass density of the medium.

For turpentile oil, it's mass density is less than water but optical density is more than that of water.

Now, moving on to your question, the relation between refractive index and speed of light:

refractive index (mu) = c (speed of light in vaccum) / v(speed of light in any medium)

for vaccum, refractive index = 1

This relation is also used in SNELL's LAW..

Let the refractive index of medium 1 be u1...and the speed of light in medium1 be v1.

Therefore, u1 = c / v1 ----------equation1.

Similarly,

Let the refractive index of medium2 be U2 ...and the speed of light in medium 2 be v2..

Therefore, u2 = c / v2-----------equation2

Now,

⇒ u1 sin i = u2 sin r

⇒ sin i / sin r = u2 / u1     (Using equation 1 and 2....)

⇒ sin i / sin r = c / v2 × v1 / c

⇒ sin i / sin r = v1 / v2

HOPE IT HELPS YOU.

<P>Explanation:

Let us CONSIDER the ratio as x as of length.

So length of 1 wire is x

And the second wire is 2x.

Let us consider ratio of area as y.

So of 1st wire it will be 2y.

And of 2ND it will be y.

Now we KNOW the formula of resistance as

Resistance= Resistivity×Length / Area

Solving for 1st wire

It will be px/2y where p means Roh or resistivity.

And for 2nd wire

It will be 2px/y

Now the ratio will be

px/2y:2px/y

In dividing it we get

pxy/4pay

Where pxy gets cancelled

So 1:4 will be the ratio.

ANSWER:

Explanation:

8.] c

9.] d

10.] d

ANSWER:

BAR magnet

Explanation:

Answer:

0.4 D

Explanation:

FOCAL LENGTH (f)=25 cm

                       = 25/10

                       = 2.5 m

Now,

POWER= 1/f

          = 1/2.5  

           =0.4 Diopter

Explanation:

Learning Outcomes

By the end of this section, you will have:

supported learners to use SCIENCE ideas to reflect on the FUELS that are used in their homes and why certain fuels are better in certain situations;

organised pupils into groups to plan an investigation to test and compare TWO common fuels;

developed STUDENTS’ ability to MAKE links between scientific principles and their everyday lives by considering how electricity can be generated.

Introduction

Science is all around us. Too often, young people see science as something learnt from a textbook that is not relevant to their evryday lives. Activities like baking cakes and growing vegetables and mending a bicycle all involve scientific principles. Making connections between the science they learn in school and the things they do at home can help to reinforce

Answer

12ohmm

Explanation:

Answer:

1. Surface on which the OBJECT is moved or the NATURE of the surface. i.e., ROUGH surface, smooth surface, LIQUIDS etc.
2. The weight of the object or the amount of force on the surface by the object.

ANSWER:

QUESTION is INCOMPLETE PLEASE CHECK

ANSWER:

HI FRIEND

Explanation:

1.a

2.c

3.b

4.d

5.a

6.d

7.a

I HOPE it HELPS you

ANSWER:

Answer is GIVEN as your WISH

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Thus the number of turns on the other coil is N2 =  13193 turns.

Explanation:

• M = 15 x 10^-3 H
• N1 = 1800
• K = 0.8

Solution:

S = 1 / a μo μr

S = 1 / π / 4 x (0.02)^2 x 4 π x 10^-7 x 1

S = 1.2665 x 10^9 AT / Wb

L1 = N1^2 / S

L2 = N2^2 / S

√ L1 L2 = N1 N2 / S

M = k  √  L1 L2 = k N1 N2 / S

15 x 10^-3 = 0.8 x 1800 x N2 /  1.2665 x 10^9

N2 = 13193 TURN

Thus the number of turns on the other coil is N2 =  13193 turns.

Answer:

Because it helps in JUMPING higher and LONGER because of inertia of motion GAINED due to the motion.

ANSWER:Answer is GIVEN below

EXPLANATION:

L=mvr

ANGULAR VELOCITY =THETA /TIME

Atom is the SMALLEST PARTICLE which MAKES up matter...

Atom is DERIVED from a greek word atomos which means indivisible.

But in fact atom consists of sub atomic particles i.e.

1. proton
2. electron
3. neutron

An hindhu saint and great philosopher kannnada

Maharishi NAMED this atom as anu .

I hope this is useful

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