Explore topic-wise InterviewSolutions in .

cfc is that gas which seplate ozone layer

The answer is OPTION 1: Nitric oxide(NO)

Angle made Solid angle

Rules for Assigning Oxidation Numbers:

1) The oxidation number for an atom of any free (uncombined) element is ZERO.Examples: Na, Ca have zero oxidation number.

2) The oxidation number of an element in self-combination is always ZERO.Examples: H2, O2, P4 have zero oxidation number.

3) In most hydrogen containing compounds, oxidation number of hydrogen is + 1.(Exception is when H combines with alkali metals or alkaline earth to form hydrides of metals such as: NaH, LiH, CaH2. Then, the oxidation number of H is -1).

4) In compounds involving the alkali metals, the elements are assigned oxidation number of +1.

5) In compounds involving the alkaline earth metals, the elements are asasigned oxidation number of +2.

6) Oxygen is usually assigned an oxidation number of -2 for oxides. It has an oxidation number of -1 in peroxides (H2O2).

7) Fluorine always has oxidation number of -1 in compounds. The other elements in that group is usually -1 in compounds with elements of low electronegativity.

8) The sum of oxidation numbers of all the atoms in the formula for a neutral compound is ZERO.

9) The sum of oxidation numbers of an ion or complex ion is the same as the charge on that ion.

ammetre and its unit is ampere

ammeter and galvanometer

Ametre the device which is used for measuring Carron.

ammeter measure strength of current , galvanometer measure potential difference between two end.

ammeter is the right answer and its unit is ampere

Ammetre is the correct answer

amppears measuring of current

ammetre is best answer

Ammeter(Amperemeter) is the device which is used for measuring the current.

thank you so much

they r located at the ends of bar magnet

These are called basic units as from these we can measure others

ans is 1 I think d

option c) the team pushes the ground more harder, more the reaction force it gets, and wins the game. Actually, this is based on newton's 3 rd law which states that action and reaction are equal and opposite. The more you push the ground, the more backward force you get, that means your team will move backwards, forcing other team to cross the line and lose the game.

not in theory do it numerically bro

As the temperature of a metallic resistor is increased the product of its resistivity and conductivity remains constant.

Because the force applied by the person isn't greater than the inertia of that almirah.Means that the almirah is applying the sane force the person is applying and as we know only unbalanced force cause motion.

Zinc-CalamineLead-GajenaAluminium-Bauxite

Thegravitational constant(also known as the "universal gravitational constant", the "Newtonian constant of gravitation", or the "Cavendish gravitational constant"[1]), denoted by the letterG, is anempiricalphysical constantinvolved in the calculation ofgravitationaleffects inSir Isaac Newton'slaw of universal gravitationand inAlbert Einstein'sgeneral theory of relativity.

In Newton's law, it is the proportionality constant connecting thegravitational forcebetween two bodies with the product of theirmassesand theinverse squareof theirdistance. In theEinstein field equations, it quantifies the relation betweenspacetime topologyandenergy–momentum.

The measured value of the constant is known with some certainty to four significant digits. InSI unitsits value is approximately6.674×10^−11N·kg–2·m2.

when X is equal to zero, gravitational force is constant

i j k5 6 -70 6 -7

= i(-42+42) -j(-35+0) +k(30+0) =35j+30k ans.

Thegravitational constant(also known as the "universal gravitational constant", the "Newtonian constant of gravitation", or the "Cavendish gravitational constant"), denoted by the letterG, is anempiricalphysical constantinvolved in the calculation ofgravitationaleffects inSir Isaac Newton'slaw of universal gravitationand inAlbert Einstein'sgeneral theory of relativity

V1/V2= N1/N2so220/V2= 10/1V1= 22 v

Ns/Np=Vs/Vp=a

a=turn ratio

10:1=Vs/22010=Vs/220Vs=220*10=2200V

The input and output frequencies are the same. Turns ratio (the number of primary turns divided by the number of secondary turns) is approximately equal to the ratio of primary to secondary voltage. Therefore if secondary voltage is 40V, the primary voltage will be approximately equal to 200V

we know thatV₁/V₂= I₂/I₁= N₁/N₂current = 0.4A

turns ratio will be N1/N2= 220/441/5

(b) for F= 300 N

similarly, find for other magnitudes of force

u=-3f/2 after sign conventionsv=?f=-fby mirror formula:1/f=1/v+1/u1/v=1/f-1/u=-1/f-2/3f=(-3+2)/3f=-1/3fv=-3f image is beyond Cthus, m=-v/u=+3f/(-3f/2)=-2m=-2Image is real, inverted and magnified.

option (2)

use parallel axis theorem.

requuired MI= ml^2/12 + m(l/2)^2

=ml^2/3.

(1/2) kaise aya bro

explain me bro

ho gya bro

sahi he kya

Physics is the branch of science concerned with the nature and properties of matter and energy. The subject matter of physics includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms.

hello mujha pata ha Yar 1st time download Kiya hu check Kar Raha hu bar bar pata nahi kaise Chala ja Raha ha

please send me book name

Thank u miss

3) is the correct answer

I guess the question is not complete.. because I can't see m3 in the figure as well as the weight of all masses otherwise the answer would be in the form of m

option (D)

Newton's law of universal gravitation states that every particle attracts every other particle in the universe with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. Ex : force between planets, an objects falls in Earth as it attracts that object

We fall in forward direction when a moving bus apply brakes because when the bus was moving, our upper part of body and the bus both are in motion, and when the bus apply brakes our body tries to be in motion because of inertia of motion and experiences a forward push.

And when a bus at rest accelerates from rest , the passengers fall backwards, as initially both bus and our upper part of body is in state of rest and when it's starts moving our body tries to be in state of rest due to inertia of red rest and the passengers feel a backward push.

Note - Inertia is the inability of the body to change its state of rest or motion by itself.

u= -10 cm(negative as per sign convention)

m= -4(real image)

m= -v/u

so, v = -40cm

therefore image is located 40 cm in front of concave mirror

since v is negative therefore image formed is real and inverted

Saturated Water Vapour :

When you add moisture (by water spray) to the dry air then it becomes water vapour. Now, consider you add moisture continuously. After period of some time we can not add moisture in the dry air because there is amaximum amount of moisture added,so this is called the saturated water vapour.

Unsaturated Water Vapour :

When you can add the moisture in the dry air till it reach to the saturation state then it's called unsaturated water vapour.