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Time period is directly dependent upon length with SQUARE root and inversely proportional to acceleration DUE to gravity with square root. Concept: Length of pendulum means the DISTANCE of centre of mass of Bob from the separation distance. It doesn't just signify the REAL length of the STRING from which the Bob hangs.I hope it will help you..

Fill in the blanks with suitable words.1) The motion in a straight line is called rectilinear motion.2) Motion of the moon around the earth is an example of circular motion.3) SIMPLE pendulum executes harmonic motion.4) Motion of a car on a city road is generally non-uniform motion.5) The S.I unit of speed is metre per second.6) Kilogram force is measured in the unit of kgf.7) The distance covered by a body in unit time is called speed.8) If a body changes it's position with respect to its surroundings, it is said to be in motion.9) If a body does not changes it's position with respect to its surroundings, it is said to be in rest.10) Rest and motion are relative terms._______________________________Ques 2) Match the FOLLOWING:i) Flying kite - Random motion.ii) Spinning wheel - Rotatory motion.iii) Motion of hands of clock - Uniform motion.iv) Carpenter's saw - Non- uniform motion.v) Motion of MOSQUITO - Mixed motion._______________________________Ques 3) PICK the odd one out. Give reason of your choice.1) Flying bird because the bird is flying which is in mixed motion.2) Merry-go-round because it is moving forward and backward and other's are moving in cirular motion3) Carpenter's saw because it is in reciprocating motion.4) Application of brakes in a moving car because it is in mechanical motion.5) A ball thrown by a boy because it is in OSCILLATORY motion

Explanation:When the image FORMED by a convex lens, INVERTED and same size as the object, then the distance of the object from the lens is 2F (twice the focal length). Here, Focal length, f=20 cm So, 2f=2×20 cm =40 cm Thus, the object should be placed at a distance of 40 cm in front of the convex lens

where is the FIGURE. it is not VISIBLE

the displacement will be zeroExplanation:because the OBJECT is coming back to the POSITION where it was THEREFORE net DEVELOPMENT is 0have a nice day DEAR

here your ANSWEREXPLANATION:

w/I×TExplanation:

6.)ANS:-A body is said to have uniform velocity when it's velocity does not change with time. 7.)ans:-A body is said to have NON uniform velocity when it's velocity changes with change in time. 8.)ans:-speed and velocity are the physical QUANTITIES which tell us how fast a body is MOVING. 9.)ans:-velocity is the physical quantity which tell us how fast an object is moving towards a specific direction.

:-According to the GRAVITATIONAL law - i According to Newton's SECOND law of motion - F = ma - iiFrom equation i and II :- This a is known as acceleration due to gravity.

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is SAID to have uniform velocity when the BODY is TRAVELLING equal distance in equal interval of time , in a PARTICULAR DIRECTION

assuming TOTAL TIME is 2tfor P, at half timev=X.t,S1=21Xt2at full time S2=Xt.t+212Xt2=2Xt2total DISTANCE covered by P is S1+S2=2.5Xt2for particle Q, at half timev=2Xt,S1=212Xt2=Xt2at full time S2=2Xt.t+21Xt2=2.5Xt2total distance covered by Q is S1+S2=3.5Xt2so distance covered by Q is more then P.Explanation:plzz mark me as brainliastand plzz follow me..

-Force(F) = 154 NRadius(r) of circular surface = 14 mTᴏ ғɪɴᴅ :-Pressure(P)sᴏʟᴜᴛɪᴏɴ :-Now, We know that, ➦ AREA of CIRCLE = πr²➮ πr² = 22/7 × 14 × 14➮ 22 × 2 × 14➮ 44 × 14➮ 616cm²Hence, ➦ Area of circular surface = 616 m²Now, We know that, On putting above values in it, we get, Hence, Pressure (P) = 0.25 N/m² or Pascal

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Car B travelled FARTHER than Car A after the brakes were applied.Explanation: Car Au=54km/h = 15m/sv=0m/ss= AREA under the graph of car A with time axiss=[1/2] X base x height =[1/2] x 5 x 15 =37.5m        Car B       u= 36km/h = 10m/s           v=0m/ss= Area under the graph of car B with time axiss= [1/2] x base x height  =[1/2] x 10 x 10  =50m

16/64 =1/4 pascalExplanation:FORMULA of PRESSURE is force EXERTED /total SURFACE of area

Because by applying force he is GIVING force to that rickshaw to MOVE front . Then the rickshaw had ALREADY force so there is no need to APPLY more force

3 m/sExplanation:AV. velocity is GIVEN byHere,Δx = (18 - 3) METRE = 15 metreΔt = (7 - 2) second = 5 secondSo,

ohm's law to solve this problem. Since the incoming current is 4A, we say I=4A. The VOLTMETER READS a voltage drop of 20V across the resistor. This means that if we apply ohm's law on the resistor, we can say that V=I*R. Therefore, 20=4*R. This gives US that value of R to be 5 ohms.This was the theoretical IDEAL case. Now, with NON ideal meters, in the real world temperature increases and so the resistance also increases.

completes FULL REVOLUTION then DISTANCE will be 2 * 22/7 * RHalf revolution will be 22/7 *Rdisplacement will be 2R that is length of DIAMETER .

because in starting the cycle has to adjust to the weight of the people SITTING and of course when we are cycling ALSO we will give FORCE when we START.

Electrical resistivity (also called SPECIFIC electrical RESISTANCE or volume resistivity) and its inverse, electrical CONDUCTIVITY, is a fundamental PROPERTY of a material that quantifies how strongly it resists or conducts electric current. The SI UNIT of electrical resistivity is the ohm-meter (Ω⋅m).

d. is the CORRECT ANSWER EXPLANATION:HOPE the answer will HELP you

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speed is the time REQUIRED by an object to COVER a distance.Explanation:EX-the MAGLEV TRAIN of Japan have a speed of 586km/hour

the ANS of TIS QUESTION is EASY but LENGTHY

Energy = V * Q where V= potential difference, Q is the charge movedIn our case it is simple, 12*2=24Joules.If we are moving the charge against the potential gradient(equivalent of lifting a ball against the gravity to a specific height), then we need this MUCH energy to move the charge. If the charge is FREELY allowed to move along the gradient(equivalent of releasing a ball from a specific height to fall under the INFLUENCE of the gravity), it would release the energy to the external system.hope it helps you

efractive index of first medium, n₁= 1Refractive index of second medium, n₂ = √2Angle of INCIDENCE, i= 45°To Find:Angle of refractionSolution:We know that,ACCORDING to Snell's Lawwhere,i is angle of incidencer is angle of refractionμ₁ is REFRACTIVE index of medium where incident ray is presentμ₂ is refractive index of medium where refracted ray is presentLet the angle of refraction be rOn USING Snell's LAW ,we getHence, the angle of refraction is 30°.

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(A) 2.0 CmExplaination::: BY FUNDAMENTAL MATHEMATICAL RULES.PLZZ MARK BRAINLIST✔✔✔

Explanation:Solution,Here, we haveInitial velocity of particle, U = 4 m/sAcceleration by particle, a = 2 m/sTime taken by particle, t = 1.5 sTo FIND,Distance covered, s = ?According to 2nd equation of motion,We KNOW that,s = UT + 1/2 at²So, putting all the values, we gets = ut + 1/2 at²⇒ s = 4 × 1.5 + 1/2 × 2 × 1.5²⇒ s = 6 + 1/2 × 2 × 2.5⇒ s = 6 + 1/2 × 5⇒ s = 6 + 2.5⇒ s = 8.5 mHence, the distance covered by particle is 8.5 m.

ractive index of a medium is defined as how the light travels through that medium.It is a dimensionless measure. It defines how much a light RAY can be BENT when it enters from one medium to the other.The REFRACTIVE index has no units as it is a ratio of two similar quantities. Refractive index of a medium is also defined as the ratio of the speed of light in air or VACUUM and the speed of light in that medium. If the speed of light in air is c and the speed of light in the medium is v then the refractive index of the medium is articulated as,n = speed of light in vaccum / speed of light in medium   = c / v

Explanation:Correct QUESTION,CAR A is travelling on a STRAIGHT level road with a UNIFORM speed of 60 km/h. It is followed by another car B which in moving with a speed of 70 km/h. When the distance between then is 2.5 km, the car B is given a deceleration of 20 km/h² . After how much time will B catch up with A.Solution,Here, we haveSpeed of car A = 60 km/hSpeed of car B = 70 km/hDistance between car B and A = 2.5 kmi.e D(B) - D(A) = 2.5 kmAcceleration (deceleration), a = - 20 km/hTo Find,Time in which Car B will catch car A.We know that,Distance = speed × timeD(A) = 60 × TD(A) = 60t kmAnd for Car B,We know that,s = ut + 1/2 × at²⇒ s = 70 × t + 1/2 × (- 20) × t²⇒ s = 70 - 10t² kmThen, D(B) =  70 - 10t² kmIts given that,D(B) - D(A) = 2.5 km⇒ 70t - 10t² - 60t = 2.5 km⇒ 10t - 10t² = 2.5 kmBy DIVIDING eq by 10, we get⇒ t - t² = 0.25⇒ t - t² - 0.25 = 0By factorization method, we get⇒ t² - t + 0.25 = 0⇒ t² - 0.5t - 0.5t + 0.25 = 0⇒ t(t - 0.5) - 0.5(t - 0.5) =0⇒ (t - 0.5) (t - 0.5) = 0⇒ (t - 0.5)² = 0⇒ t = 0.5 = 1/2⇒ t = 1/2 hours.Hence, Car B will catch car A is 1/2 hours.

ng to Newton's third LAW of motion, for every action, there is an EQUAL and opposite REACTION. When the man jumps from a boat, he applies force on the boat due to which boat moves backward. An equal force is exerted by the boat on the man which helps the man to JUMP out of the boat.itzDopeGirl

r.i = speed of light in VACCUM/ speed of light in that PARTICULAR mediumr.i= 3 * 10^8/1.5 *10^8= 2*10^8 ms-1Explanation:HOPE it helps you and mark as Brainliest answer :)

Wavelength is ONE way of measuring the size of WAVES. ... In a transverse wave, particles of the medium vibrate up and down at right angles to the direction that the wave travels. The wavelength of a transverse wave can be MEASURED as the distance between TWO adjacent crests, or high POINTS, as shown in the Figure below.

Explanation:Solution,Here, we haveInitial velocity of bullets, u = 20 m/sFinal velocity of bullets, v = 0Distance COVERED, C = 6 cm = 0.06 mTo Find,Deceleration of the bullet, a = ?According to the 3rd law of motion,We know that,v² - u² = 2asSo, PUTTING all the values, we get⇒ v² - u² = 2as⇒ (0)² - (20)² = 2 × a × 0.06⇒ 400 = 0.12a⇒ 400/0.12 = a⇒ a = 3333.33 m/s²Hence, the deceleration of the bullet is 3333.33 m/s².

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