New Concepts/Shortcuts 1

Question 1

net new voltage and heat generated when two capacitors are put together with the negative side connected to the positive side

Answer 1

Question 2

what does it mean when we have a point equidistant from both coordinate axis

Answer 2

that point lies on the line x=y or x=-y

Question 3

shortcut for dopplers effect when sound reflected from a fixed wall

Answer 3

just assume another ca/object with same velocity in opposing direction like a mirror

Question 4

intensity due to electric field

Answer 4

Question 5

whats demoivre’s theorem

Answer 5

Question 6

angular velocity and linear velocity of the masses in the double star system?!?!

Answer 6

Question 7

what are the dimensions of the mechanical equivalent of heat

Answer 7

dimensionless

Question 8

Ur for diamagnetic is less than or more than 1 and is it positive or negative

Answer 8

its less than 1 and its -ve

Question 9

between two collision, a gas molecules always travels in ____

Answer 9

straight line

Question 10

expand

Answer 10

Question 11

the force exerted and pressure exerted on reflecting and non reflecting wall

Answer 11

Question 12

graph of

Answer 12

Question 13

what to do in situation where the objects aren’t in same line for dopplers effect

Answer 13

Question 14

ferrous has +2 or +3 charge

Answer 14

+2 charge

Question 15

how to find the reflected ray equation

Answer 15

find a point of the incident ray! take an image of that point w.r.t mirror

that image would lie on the reflected ray

then we would have two points with one being the point of incidence and one being the image and hence we can find the reflected ray

Question 16

meter bridge formula derivation of the resistances?!

Answer 16

Question 17

what is the speed of the moving pulley if we are given the speed of the blocks attached to it

Answer 17

Question 18

what does water equivalent means in a calorimeter

Answer 18

it means the calorimeter has its specific heat like 20g of water and hence we count 20 g along with the mass of water in it to take the calorimeter into account

Question 19

field exerted from an infinite plane of the sheet at a distance d

Answer 19

Question 20

angle of repose formula

Answer 20

Question 21

Answer 21

Question 22

projectile on incline formulae

Answer 22

Question 23

degree of freedom for

diatomic rigid gas
diatomic non-rigid gas
triatomic rigid gas

Answer 23

diatomic rigid gas:- 5
diatomic non-rigid gas:-7
triatomic rigid gas:- 6

Question 24

whats volume strength

Answer 24

x=11.2 * M

where x is volume strength and M is the molarity

Question 25

whats the concept of the resonance tube

Answer 25

Question 26

concept of efflux in container

Answer 26

just compare the energy equations/Bernoulli’s equations at P1 and P2

Question 27

number of stereoisomers if we are given the number of stereocenter?!

Answer 27

2^n

Question 28

melting of ice is preferred at

Answer 28

high temperature and high pressure

Question 29

glycerol is separated in soap industry by?!

Answer 29

distillation under reduced pressure

Question 30

Ur for paramagnetic is less than or more than 1 and is it positive or negative

Answer 30

more than 1 and +ve

Question 31

aldehyde which gives +ve iodoform test

Answer 31

CH3CHO

Question 32

whats skew-symmetric matrix

Answer 32

Question 33

Answer 33

the Electrif field remains same at any distance

Question 34

refractive index formula with constant of emissivity and permeability

Answer 34

Question 35

galactose and glucose are

Answer 35

galactose and glucose are epimers

Question 36

whats symmetric matrix

Answer 36

Question 37

when does the rate of an enzyme reaction become maximum?

Answer 37

The rate of an enzyme reaction becomes maximum at a definite temperature, called the optimum temperature. On either side of the optimum temperature, the enzyme activity decreases

Question 38

what’s the suitable temperature for enzyme reactions?

Answer 38

The optimum temperature range for enzymatic activity is 298-310K. Human body temperature being 310 K is suited for enzyme-catalyzed reactions.