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tion:In general, total internal reflection takes place at the boundary between TWO transparent media when a ray of LIGHT in a medium of higher INDEX of refraction approaches the other medium at an angle of INCIDENCE greater than the critical angle. For a water-air surface the critical angle is 48.5°. MARK AS BRAINLIAST

and INORGANIC FertilizersOrganic fertilizers are made from natural and organic materials—mainly MANURE, compost, or other animal and plant products.  Inorganic fertilizers are made of up chemical components that contain NECESSARY nutrients. Nitrogen FertilizersNitrogen  PHOSPHATE FertilizersPhosphorous  Potassium FertilizersPotassium  Hope this helps you PLEASE mark me as the brainliest

when it is not MENTIONED to GIVE the ANSWER in SI UNIT, then you can give in non-si unit

mical units also make it easy to think about DISTANCES between solar system objects. They make it easy to see that Jupiter orbits five times farther from the SUN than Earth, and that Saturn is TWICE as far from the Sun as Jupiter. (This is because, technically, you're expressing every distance as a RATIO of the distance from Earth to the Sun. CONVENIENT!)

I don't KNOW EXPLANATION:SORRY .but what is this .

The FORMULA is EASY to use while dealing with CHARGES of regular and smooth shape, and it BECOMES too complex to deal with charges having irregular shapes. The formula is only valid when the solvent molecules between the particle are SUFFICIENTLY larger than both the charges

-A boy of mass 40kg runs up a height of 30steps each 20cm high.To FIND :-Find the force of gravity acting on the body and the work DONE by the boy against gravity.Solution :-TOTAL distance covered = Total steps × Height of eacj step⇒ 30 × 20⇒ 600 CMAS 1 m = 100 cm600 cm = 600/100 = 6 m (i) ForceForce = Mass × AccelerationForce = 40 × 9.8Force = 392 N(ii) Work doneWork done = Force × DistanceWork done = 392 × 6Work done = 2352 J

the MOMENTUM of translation being a vector quantity in classical physics EQUAL to the product of the MASS and the VELOCITY of the center of mass.

0.05 AEXPLANATION:I = Q/T= 0.5/10=0.05 A

️When a missile is fired from a ship , the PROBABLITY that it is intercepted is ⅓ and the probablity that the missile hits the target, given that it is not intercepted , is ¾ . If THREE MISSILES are fired independently from the ship, then the probablity that all three HIT the target is:– A)1/27B)3/4C)1/8 D)3/8

tion:Answer:The percentage error in P is 13%.Explanation:GIVEN that,P=a^3b^2(\sqrt{c}d)P=a 3 b 2 ( c d)a = 1%b= 3%c=4%d=2%The percentage error in P\dfrac{\DELTA P}{P}\times100=[3\times\dfrac{\Delta a}{a}+2\times\dfrac{\Delta b}{b}+\dfrac{1}{2}\dfrac{\Delta C}{C}+\dfrac{\Delta d}{d}]\times100 PΔP ×100=[3× aΔa +2× bΔb + 21 CΔC + dΔd ]×100\dfrac{\Delta P}{P}\times100=[3\times\dfrac{1}{100}+2\times\dfrac{3}{100}+\dfrac{1}{2}\times\dfrac{4}{100}+\dfrac{2}{100}]\toimes100 PΔP ×100=[3× 1001 +2× 1003 + 21 × 1004 + 1002 ]\toimes100\dfrac{\Delta P}{P}\times100=[\dfrac{3+6+2+2}{100}]\times100 PΔP ×100=[ 1003+6+2+2 ]×100\dfrac{\Delta P}{P}\times100=[\dfrac{13}{100}]\times100 PΔP ×100=[ 10013 ]×100\dfrac{\Delta P}{P}\times100=13\% PΔP ×100=13%Hence, The percentage error in P is 13%.

Kinematics, branch of physics and a subdivision of classical mechanics concerned with the geometrically possible motion of a body or system of BODIES WITHOUT CONSIDERATION of the forces involved (i.e., causes and EFFECTS of the motions).

Here WORK done =F. SX(MV) =F. SMV dimensional formula :M^1 L^1 T^-1Dimension formula of work done M ^1 L ^2 T^-2Now x=dimensional formula of momentum divided by dimensional formula of workAnswer is L ^1 T^-1

A bulldozer or dozer (also called a crawler) is a large, MOTORIZED machine that travels on continuous tracks or large tires and is EQUIPPED with a metal blade to the front for pushing material: soil, sand, snow, rubble, or rock during construction or conversion work. When needed, a hook-like device (termed a ripper) can be mounted on the rear to loosen dense materials. Bulldozers can be found on a wide range of sites, mines and QUARRIES, MILITARY bases, heavy industry factories, engineering projects, and farms. The word "bulldozer" refers only to a tractor fitted with a dozer blade. The word is sometimes used inaccurately for other earth moving equipment such as front loaders.Explanation:

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tion:We know that potential difference = Work done/Charge moved.In this case, V = 230 V and V2 = 240 V. The MOUNT off charge moved = 5 C.Thus, the potential difference = v2-V1 = 230-240 = 10 VTherefore, Work done = Potential difference * Charge moved.That is, 10 * 5 = 50 Joules.Hence, the work done in moving a charge of 5 coulombs from a point at 230 volts to ANOTHER point at 240 volts is 50 J.

ond equation of MOTION GIVES the relation between the POSITION and time. Thus, the relation between the position and time is GIVEN by the second equation of motion.

Given polynomial P(x)=2X 2 −3x+7a is zero polynomial if x is 2Replace x by 2 we get∴2(2) 2 −3(2)+7a=0⇒2×4−3×2+7a=0⇒8−6+7a=0⇒2+7a=0Add -2 both SIDES we get2+7a−2=0−2⇒7a=−2Divided by 7 both side we geta=− 72 So a=− 72 verified_toppr

Explanation:15m/s CORRECT answer is A. a=2(t−1) =2t−2 DT dv ​ =2t−2 dv=(2t−2)dt INTEGRATING both side we get, ∫dv=∫(2t−2)dt v=t  2 −2t+c =(5)  2 −2×5 =25−10 =15m/s

50km/h

a) P/ SIN a = Q/ sin b = R/ sin c

a}FORCE =m*a UNITS are kg x meter/second 2Explanation:b) MOMENTUM =m *v units kgm/s2

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The definition of acceleration is a change in the rate of motion, speed or ACTION. An EXAMPLE of acceleration is increasing your DRIVING speed from 45 to 55 to merge with traffic.

ch SINGH JATT they can CHECK VV CTN disk did she v South didn't fill

4.Which of the following is not a traditional irrigation method?(1 Point)( a)Moat( b) Chain pump( c)Lever SYSTEM(d)Drip system5.Weeds are controlled by chemicals called _________.(1 Point)( a)Pesticides(b)Fungicides(c)Weedicides(d)Insecticides6.Arrange the following agricultural practices in the order in which they are followed.1. Harvesting2. Sowing3. Storage4. Irrigation5. Preparation of soil(1 Point)( a) 1→2→3→4→5( b) 5→2→4→1→3( c) 2→1→3→5→4(d) 5→3→4→1→27.Identify the agricultural method in which different crops are grown on a piece of land season after season.(1 Point)( a) Irrigation( b) MONOCULTURE( c) Crop rotation(d) Shifting cultivation8.Rhizobium bacteria in the root nodules of leguminous plants help in fixing:(1 Point)( a) Sulphur( b) Oxygen( c) Nitrogen( d) Hydrogen9.Wheat and GRAM belong to(1 Point)(a) Rabi crops(b) Kharif crops(c) Both of these(d) None of these10.The process of separating grains from chaff is known as:(1 Point)( a) Threshing( b) Harvesting( c) Tilling( d ) Transplantation11.The disease caused by protozoa is(1 Point)(a) tuberculosis(b) polio(c) TYPHOID(d) malaria12.Which bacteria helps in settling of curd?(1 Point)(a) Rhizobium(b) Lactobacillus(c) Vibriocholarae(d) Bacillus13.What helps in the rise of bread or dosa dough?(1 Point)(a) Heat(b) Grinding(c) Growth of yeast cells(d) Low pressure14.Vaccine for small pox is discovered by(1 Point)(a) Louis Pasteur( b) Alexander Fleming( c) Edward Jenner( d) John Mendal15.Amount of nitrogen in the atmosphere is(1 Point)(a) 58%( b) 68%( c) 78%( d) 88%16.In order to take precautionary steps to control DENGUE , we must take measures to stop the breeding of:(1 Point)( a) Aedes MOSQUITO(b) Fleas( c) Fire ants( d) Anopheles mosquito17.Which of the following is a communicable disease?(1 Point)( a) Diabetes( b) Chicken pox( c) Alzheimer’s( d) Cancer18.The metal which is liquid at room temperature is(1 Point)(a) sodium(b) bromine(c) calcium(d) mercury19.Name the gas evolved when magnesium reacts with dilute hydrochloric acid(1 Point)(a) Chlorine(b) Oxygen(c) hydrogen(d) Nitrogen20.Materials having qualities of both metals and non-metals are(1 Point)(a) Elements(b) metalloids(c) noble metals(d) none of these21.A reaction in which a more reactive metal replaces a less reactive metal from its salt solution is called a________ reaction.(1 Point)(A.) combination(B. ) displacement(C). double displacement(D.) addition22.When sulphur reacts with oxygen, the oxide formed is ___ in nature.(1 Point)(A.) alkaline(B.) neutral(C.) basic( D.) acidic23.The property by which metals can be beaten into sheets is known as ___(1 Point)( A.) ductility( B.) sonority( C.) lusture(D.) malleability

The distance between the object and the pole of the MIRROR is CALLED the object distance(u). The distance between the image and the pole of the mirror is called Image distance(V).

tion:Image formation by CONVEX mirrorImage formed by a convex MIRROR is always virtual and erect.When an object is placed at INFINITY, virtual image is formed at focus and the size of the image is smaller.When an object is placed at a finite distance from the mirror, a virtual image is formed between pole and focus of the mirror and the size of the image is smaller.hope it will help you please mark me as BRAINLIEST

two 6 ohm CONNECT in PARALLEL series and ONE 6 ohm in series then resultant 9 ohmtwo RESISTANCE are in series and one resistance in parallel

1 - TRUE 2- FALSE3- The conservation of MOMENTUM states that, within some PROBLEM domain, the amount of momentum remains constant; momentum is neither created nor destroyed, but only changed through the action of FORCES as described by Newton's laws of motion. ... Momentum is conserved in all THREE physical directions at the same time.4- A ballet dancer makes use of the law of conservation of angular momentum to vary her angular speed. When she suddenly folds her arms and brings the stretched leg close to the BODY, her angular velocity increases on account of the decrease in moment of inertia. This helps in rotating safely on her legs.

the FORM of ENERGY that an OBJECT GAINS as it is LIFTED

A concave mirror, or converging mirror, has a reflecting surface that is RECESSED inward (away from the incident light). Concave mirrors REFLECT light inward to one focal point. They are USED to focus light.Explanation:hope it helpful for youplease MARK me as Brainliest

this is CORRECT answerExplanation:By finding the minimum DISTANCE between the initial and final position of the car we will get the solution. Complete answer: In the question we are GIVEN a car which TRAVELS from A to B and then back to A. The velocity of the car from stop A to stop B is given as 30 km/h and from stop B to A is given as 50 km/h.

Heat convection on kinetic model of MATTER - definitionWhen a substance is heated, its molecules COME in direct CONTACT with the source of heat, they ABSORB heat energy and expand

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