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A) is the CORRECT ANSWER BRO

focal length is given as1/f = 1/v - 1/uhereu = -40 cmv = -100 cmso,1/f = (1/-100) - (1/-40)1/f = (-2+5)/2001/f = 3/200or focal lengthf = 200/3 CM = 66.67 CMAND POWER of lens[here f = 66.67 cm = 0.66m]P = 1/f = 1/0.66= 1.51 DMARK ME BRAINLIEST

Object Distance and Image distance are MEASURED from the CENTRE of the mirror or LENS CALLED as POLE .

=150 I think by its formula PLEASE MARK it as BRAINLIEST and also click on a SMALL heart and FOLLOW me

Which CLASS are you MAKE me CLEAR

ntity OBTAINED is not useful.Explanation:Since AREA of displacement - time graph GIVES (MS) as the unit which is inappropriate.HOPE IT HELPS !!!!

The increased temperature MODIFIES the charge distribution on the hot sphere by giving it more varianceCarl's answer SAYS there is no EFFECT on the charge distribution like I describe, but DarrenW points out that there will be an increased black-body RADIATION pressure between the spheres, similarly CAUSING an outward

dAs voltage ACROSS inductance and CAPACITOR is same(series=>current is same)So inductive and CAPACITIVE reactances are equalRESONANCE CONDITIONThus the CIRCUIT acts as resistive circuit;where voltage and current are in phase.

don't no very very very very very very very very very SORRY

tion:In an AC circuit, the POWER dissipated in the circuit is given by:P=V rms I rms cosϕThe ϕ is the phase DIFFERENT between the current and the volatge.In the purely resistive and capacitive circuits, the phase difference is 90 ∘ , so the power dissipated will be zero.But in a purely resistive circuit, the VOLTAGE and current are in same phase so phase difference is zero. Therefore, it will have maximum power dissipation as cosϕ=1 in this case.

I don't know ANSWER so i am SORRY maybe I will help U any other TIME

(C) MUTUAL induction.Transformers WORK on the PRINCIPLE of mutual induction.Hope it HELPS you.

I THINK OPTION C is right answer........PLEASE mark as BRAINLEST answer ofhope it's HELPFUL to you

tion:6e6ee e7se6xuytisrsidlurotdtufitst8dlyoodosfissigsgautsdtsthwkrz7jzifitzozittisitsits5yodudot8stsdoyiixdljrpmfour, I have a good time to do so. I have a look 7 , and the other side of the year. the FIRST time, but it is not a lot. I have been trying for a couple. I have been a LONG 5. I am 5th, but it is not a lot of people who is the most of them. they are you 74. I am a beautiful day and NIGHT. it is the best way FORWARD. it is a great deal of

conductor ampacity it WORKS when. it's CONDUCTORS are LOW .HOPE you LIKED answer.

0.1744 KgExplanation:a = 17.2F = 3 We know, F = MA3 = 17.2 X mm = 3/17.2m = 0.1744 KgPlease MARK as BRAINLIEST.

275020 SECONDS20Rad × 180/π = 1145.916 DEGREESExplanation:

:Given :Acceleration = 12.3m/s^2Force = 4.2 newtons Required to find:Mass of the object Solution:To solve this question we need to learn about the Newton's 2nd law of motion in detail. From this Newton's 2nd law of motion we are going to DERIVE a FORMULA to solve this question simply.Newton's 2nd law of motion Newton's 2nd law of motion states thatThe rate of change of momentum is directly PROPORTIONAL to the UNBALANCED force in the direction of force .So, this represented asThis proves that,Force is directly proportional to Mass.Force is directly proportional to Acceleration. So , from above we get a formula Therefore, using this formula we are solving this question but we need to chance this formula a bit to get our answer directly!!Hence ,Therefore,Mass = 4.2 N / 12.3 m/s^2 = 0.3414----- = 0. 34 kg ( approximately)Hence ,The mass of the object is 0.34 kgs.

for 4 ohm connect 3 and 6 ohm RESISTOR in parallel and then connect with 2 ohm in SERIESFOR 1 ohm connect all the resistance in parallel

geothermal energygeothermal energyHot water can be released through geysers, hot springs, steam vents, underwater hydrothermal vents, and MUD POTS. These are all SOURCES of geothermal energy. Their heat can be captured and used directly for heat, or their steam can be used to generate electricity.

[TEX][\tex] HI BRO MARK as BRAINLIEST

our readers about COVID-19:As the COVID-19 situation develops, our hearts ache as we think about all the people around the WORLD that are affected by the pandemic... Read moreLearn why people trust wikiHowHow to Become an AstronomerCo-authored by wikiHow StaffUpdated: January 2, 2020 | ReferencesAstronomy is the study of the stars, planets, and galaxies that make up our universe. It can be a challenging and rewarding career that could lead to amazing discoveries about the way space works. If you have a passion for the night sky, you can translate that into a career as an astronomer by getting good grades in physics and mathematics. You should then develop the skills and experience necessary to land a good professional position as an astronomer at an observatory or even a space agency like NASA. Part 1 of 3:Getting the Necessary EducationImage titled Become an Astronomer Step 11Get good grades in high school physics, mathematics, and chemistry. Take regular and advanced classes in these subjects. Work hard and earn high marks in these classes, as this will give you a good foundation for the study of astronomy.[1]If you struggle to do well in these subjects, you may hire a tutor to help you get better grades. You can also join a study group to help you earn better marks in these subjects.Image titled Become an Astronomer Step 22Earn a bachelor’s degree in science, with a focus on astronomy or physics. Take a four year degree in science, MAJORING in astronomy or physics. This degree will teach you key skills and prepare you for a career as an astronomer.[2]Some universities will offer a degree specialization in astrophysics, which is a mix of astronomy and physics.Speak to an academic advisor for advice on which universities to apply to. You may apply to your local university or college. Or you may earn your degree in a university that is out of state or in a DIFFERENT city.Pick a university that offers a good bachelor’s program in science and good financial aid.Image titled Become an Astronomer Step 33Get a master’s degree in science. Most astronomers have a master’s degree in science as well as an undergraduate degree. This degree can take at least two years to complete. Getting a master’s degree will allow you to take specialized classes on astronomy, physics, and math. You will also get a chance to do research in the field.[3]As part of your master’s degree, you will also write a master's thesis that explores a specific topic or idea in astronomy.Image titled Become an Astronomer Step 44Pursue a Ph.D in a particular area of astronomy. Doing a Ph.D gives you the opportunity to study a particular area of astronomy, such as radio, solar, cosmos, or galactic astronomy. You will need to take classes that cover a particular area of astronomy. This degree can take four to five years to complete.[4]There are many different areas of astronomy that you can study at the Ph.D level. Take the time to figure out what interests you, such as planets and moons, the cosmos, or the galaxies.As part of your Ph.D, you are usually given the opportunity to do internships and research FELLOWSHIPS in your particular area of study. This is a great way to gain work experience in the field.Image titled Become an Astronomer Step 55Complete your Ph.D dissertation and take the qualifying exams. To get your Ph.D, you will need to create a dissertation proposal. Your dissertation should provide a deep study of a particular topic in the field of astronomy. You will then need to write the dissertation, which can range from 80 to 100 pages. You will also need to take qualifying exams to graduate with a Ph.D.[5]The qualifying exams will vary depending on the program you are in. You usually have to write a paper and do an oral presentation to pass the exams.Examples of possible dissertation topics include EXPLORING star formations, examining high mass planets, and analyzing radio pulsars.[6] pls follow me and mark me brainlest pls pls

Zero.Explanation:

The UNIT of ACCELERATION is m/s²please MARK it as BRAINLIEST and also click on a SMALL heart and follow me

i CANT undrstandExplanation:

In a PURE OHMIC AC Resistance, the current and voltage are both “in-phase” as there is no phase difference between them. The current flowing through the resistance is directly proportional to the voltage across it with this LINEAR relationship in an AC circuit being called Impedance.mark me as brainliest EXPLANATION:

(C) ADMITTANCE Explanation:Admittance Y= 1/Zhence the ANSWER is Admittance# MARK it as the BRAINLIEST# thank toh kardo

n :Given :-A car covers first HALF of total distance with velocity 40kmph and second half of total distance with velocity 60kmph.To Find :-Average velocity of car during WHOLE journey.Concept :-▪ Average velocity of object is defined as RATIO of total distance TRAVELLED to the total time taken.▪ Average velocity is vector quantity.Calculation :-If body covers first half of total distance with velocity V1 and second half of total distance with velocity V2, then average velocity of body is given by

i NEED some HELP for SOLVE the QUESTION

Explanation:REACTANCE is INVERSELY PROPORTIONAL to (capacitance×frequency)If both are doubled;then NEW reactance is

(a)EXPLANATION:

e that draws power SUPPLY to your house from STREET has220 V average voltage.

of self-inductance L is CONNECTED in series with a BULB B and an AC source. BRIGHTNESS of the bulb decreases whenfrequency of the ac source is decreased.

tion:Artwork: Kettles use a lot of energy to boil water, but do the job QUICKLY (in about 2.5 minutes) because they WORK at HIGH POWER.

HEY MATE HERE IS UR ANS MARK MY ANSWER AS BRAINLIST OKK BRO AND FOLLOW ME IN BRAINLY BYY

OPTION CEXPLANATION:POWER FACTOR VARIES BET\WEEN  0 AND 1. POWER FACTOR IS FOR  0 FOR PURE INDUCTIVE OR CAPACITIVE CIRCUIT.POWER FACTOR IS 1 OR UNITY FOR PURE RESISTIVE CIRCUIT.HOPE THIS HELPS.

A transformer WORKS on the principle of(C) MUTUAL INDUCTANCE.

A) 5V is the CORRECT ANSWER BRO

Considering a point source of monochromatic light S in a homogeneous medium. The light waves travel with the same speed(V) in all the DIRECTIONS. After the TIME ′t′, the waves will reach all the points which are at a distance vt from S. This is the spherical wavefront XY. LET A, B, C be points on the wavefront. To find the new wavefront after a time Δt, we draw spheres of radius vΔt with A, B and C as CENTRES. The tangents drawn to these spheres is the new spherical wavefront.Explanation:hope this helps