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The distance from the pole to the FOCAL point is called the focal length (f). The focal length of a spherical mirror is then approximately half its RADIUS of CURVATURE. It is important to note up FRONT that this is an approximately true relationship.

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The lens formula is a mathematical relation between the object distance U, image distance v and focal length f of a spherical lens. This formula is applicable to both convex and concave lenses. An object 5 cm in length is held 25 cm away from a CONVERGING lens of focal length 10 cm. ... Converging lens MEANS a convex lens.Please mark my ANSWER as brainliest

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tion:A body with mass 5 kg is acted UPON by a force F = ( - 3 î + 4 ĵ )N. If its initial velocity at t = 0 is v = ( 6 î - 12 ĵ )m s^-1 , the time at ...

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irrors PRODUCE images that have a magnification of 1. In conclusion, PLANE mirrors produce images with a number of distinguishable CHARACTERISTICS.

Given that,Focal length f= 2R RADIUS of curvature R=30Object distance u=10cmHeight of object h o =2cmFrom the mirror formula, F1 = v1 + u1 − v1 = u1 − f1 − v1 = 101 − 302 − v1 = 303−2 v=−30cmNow, the MAGNIFICATION is m= u−v m= 1030 m=3 Now, the height of image m= h o h i 3= 2h i h i =6cm Hence, the image distance is −30 cm, height of image is 6 cm and magnification is 3

Tension not only provides the CENTRIPETAL force NECESSARY for circular motion but ALSO balances the COMPONENT of weight along the string.component of weight along the string is mgcosθ.Thus, T−mgcosθ= LMV 2 ⇒T=mgcosθ+ Lmv 2 .solution

tion:OBSERVE the adjacent FIGURE and WRITE on compression effect of pressure on air and liquid ... LOG in to add comment ...

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Observing the types of images and MEASURING the object distance and image distance from the mirror.Material REQUIRED: A candle, paper, concave mirror of known focal length, V - stand, measuring tape or meter scale.Procedure :-Place the concave mirror on V - stand, a candle and meter scale.Keep the candle at different lengths from the mirror along the AXIS and by moving the paper find the position where you get the sharp image on paperThis imaginary line is called the PRINCIPAL axis or optical axis of the mirror. ... Rays of light parallel to the principal axis of a concave mirror will appear to converge on a point in front of the mirror somewhere between the mirror's pole and its center of curvature.I hope it works MARK me as a brainliest

20m/sExplanation:PLEASE MARK as BRAINLIST

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T 1 =2π g+2l T 2 =2π g+6l T 2 T 1 = 1216 = 34

a = bq+r Explanation:here a is the dividend b is DIVISOR q is quotientand r is remainder mark as BRAINLEST and pls rate this ANSWER and also hit the LIKE BUTTON

tion:HEY MATE .....Given: mass of the body =70 kg.Volume of water displaced =20,000 CM ^3 or 0.02 m^33 Density in C.G.S = mass/ volume=70×1000/20000=3.5 g cm ^3 3 Relative density of the solid = density in C.G.S. WITHOUT unit=3.5.HOPE IT HELPS YOU HOPE IT HELPS YOU 30 THANKS + FOLLOW =INBOX

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tion:2mparticle is projected vertically UPWARDS from ground with an initial SPEED of 57 m/s. If acceleration due to GRAVITY is taken to be equal to 10 m/s2, then the DISPLACEMENT ofthe particle in the sixth second of its motion will be

Speed = 345 m/secTime = 4 secSpeed = distance/timeTherefore, distance = speed × time= 345×4= 1380The prey is 1380 m away.Hope it helps!Kindly MARK as BRAINLIEST :)

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In electric and electronic systems, reactance is the OPPOSITION of a circuit ELEMENT to the flow of current DUE to that element's inductance or capacitance. Greater reactance leads to SMALLER currents for the same VOLTAGE appliedExplanation:plz follw me

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mass, m = 1kgheight, s = 20minitial velocity of ball, u = 0m/sacceleration, a = 10m/s 2 Using, v 2 = u 2 + 2as = 0 + 2×10 ×20 = 400 v = 20m/sNow, let us take upward direction as positive and downward direction as negative.Initial momentum of the ball (before STRIKING the GROUND) = m×v = 1×(-20) (velocity is downward, hence negative) = -20kgm/s Now, when the ball strikes and rebounds, its velocity BECOMES +20m/s (after striking, it moves upward, hence positive velocity)Final momentum (after striking the ground) = m×v = 1×(+20) = +20kgm/sChange in momentum = Final momentum - Initial momentum = 20kgm/s - (-20kgm/s) = 40kgm/s i

tion:ANSWERHydrostatic pressure = ϱghgiven ϱ=10 3 kg/m 3 1g=10ms −2 ,h=6mPressure = 10 3 m 3 kg ×10 s 2 m ×6 = 60000 P a

e the basic FORMULA of E = I X R, solve for R -> R = E / I. In other words, take the required voltage drop (in VOLTS) and divide by the CURRENT (in amps) in the resistor and determine the resistance (R) in ohms.

they approach each other. When they are at a DISTANCE R/2, the acceleration of their CENTER of mass wille) TWO spheres of masses M and 2M are INITIALLY at rest at a distance Rapart. Due to mutual attractionbe:

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tion:The HEATING ELEMENT of the heater is MADE up of alloy which has very high resistance so when current flows through the heating element, it BECOMES too hot and GLOWS red. But the resistance of cord which is usually of copper or aluminum is very low so it does not glow.