New Concepts/Shortcuts 4

Question 1

how to solve an unbalanced wheat stone bridge?

Answer 1

using star delta method, convert the one side to this star type shape and sub the R1,R2,R3 and it becomes a much simple problem

and remove the earlier resistanced

Question 2

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

Answer 2

Question 3

doppler effect in light formula

Answer 3

Question 4

degree of unsaturation formula

Answer 4

Question 5

generally, oxides down the grp are more acidic/basic

and whats the exception and why

Answer 5

generally, oxides down the grp are more basic

and an exception is the D block where down the grp they are more acidic this is because the increase in EN down the grp in D block

Question 6

displacement in nth second formula

Answer 6

Question 7

the gaussian surface has an equipotential surface

true or false

Answer 7

true

Question 8

peroxide,superoxide,oxide O.S

Answer 8

Question 9

whats used for {x} and [x] for sandwich

Answer 9

Question 10

galvanometer to ammeter conversion formula

Answer 10

Question 11

if the main number is smaller than the denominator(divisor) what to do

Answer 11

square or cube the number to make it the least number which is more than the divisor

Question 12

en is a strong or weak field ligand

Answer 12

strong

Question 13

open organ pipe nth overtone formula and fundamental frequency formula

Answer 13

Question 14

variation of photoelectric current i with the intensity of incident radiation can be represented by the graph:

Answer 14

Question 15

what can be struck if we have a circle touching a point

Answer 15

the family of lines of assuming the point as a diameter one family of lines concept must be used

Question 16

Answer 16

https://www.sarthaks.com/1154665/the-coordinates-vertex-focus-parabola-and-respectively-then-the-equation-its-directrix

Question 17

the dissolving of HC relation with H bonding types

Answer 17

dissolving in water is directly proportional to H bonds with water and hence inter molecular H bonds

Question 18

at 0 K

semi conductor behaves as?

Answer 18

insulator

Question 19

work done in rotation and power in relation to torque

Answer 19

Question 20

what the probability of particular nucleus decaying in any time intervals

Answer 20

Question 21

what are the metals that have a protective layer to oof oxide to protect it from the attack of H2O

Answer 21

Be

Al

Pb

Question 22

work done in cyclic process in P-V graph for clockwise direction is positive or negative

Answer 22

+ve

Question 23

at high frequency

capacitor can be treated as ________

and an inductor can be treated as _______

Answer 23

at high frequency

capacitor can be treated as a single wire

and an inductor can be treated as an open circuit

Question 24

relation between the magnetic field and magnetizing field

and what is the unit of magnetizing field

Answer 24

Question 25

magnetic field lines are completely confined or not confined in a toroid

Answer 25

completely confined

Question 26

rounding off rule for 5 in last

Answer 26

Question 27

intensity of magnetization formula

Answer 27

Question 28

Bh formula for earth magnetization

Answer 28

Bh=Bcos theta

Question 29

true angle of dip formula

Answer 29

Question 30

range for the water in the container with an efflux

Answer 30

H being the total hieght and h being the hieght form the top

Question 31

BP of +ve deviation solution as compared to the ideal solution

and other properties comparison

Answer 31

Question 32

BP of -ve deviation solution as compared to the ideal solution

and other properties comparison

Answer 32

Question 32

relative lowering of Vp formula

Answer 32

Question 33

relation of eeta of paramagnetic material and temperature

Answer 33

Question 34

maximum speed on a curved road

Answer 34

Question 34

subtraction of quadratic roots formulae shortcut

Answer 34

Question 35

1 amu to kg

Answer 35

Question 35

theorem if 3 vectors are lying in the same plane

Answer 35

Question 36

Answer 36

Question 37

Answer 37