New Concepts/Shortcuts 14

Question 1

Answer 1

Question 2

when does the object leaves the hemisphere if left from the top with a velocity

Answer 2

Question 3

COM for a semicircular disc

Answer 3

Question 4

COM for a hollow hemisphere

Answer 4

Question 5

COM for hollow and solid cone

Answer 5

Question 6

whats imp concept in explosion of a projectile mid-air

Answer 6

Question 7

Answer 7

Question 8

whats impulse

Answer 8

Question 9

h’ and v’ formula for a ball bounced on the floor

Answer 9

Question 9

F and P relation

Answer 9

Question 10

shortcut formula for finding total distance traveled and Time taken for a bouncing ball for inf time

Answer 10

Question 11

coeff of restitution formula

Answer 11

Question 12

intensity in diffraction from single slit

and angle made with the horizontal by the rays

Answer 12

Question 13

polarising concept

Answer 13

Question 14

projectile motion on inclined plane (up the incline)

Answer 14

learn the usual formula for T and H and then use them in R

assume the plane as x,y plane and assume the accelerations according

Question 15

penicillin G is ______ spectrum antibiotic

Answer 15

penicillin G is narrow spectrum antibiotic

Question 16

water syn gas equation is commericial

true or false

Answer 16

true

Question 17

ampicillin and amoxicillin are synthetic modifications of ______
and they have _____ spectrum

Answer 17

ampicillin and amoxicillin are synthetic modifications of Penicillin
and they have broad spectrum

Question 18

electrolyte is added to make colloid/emulsions

Answer 18

colloid

Question 19

emulsifying agents for oil in water :

Answer 19

emulsifying agents for oil in water are:- proteins,gums,natural and synthetic soaps etc

Question 20

young’s, bulk modulus of elasticity flow chart with formulae

Answer 20

Question 21

stress and strain relation formula

Answer 21

Question 22

potential energy in terms of strain stress etc

Answer 22

Question 23

change in gravitational acceleration due to rotation of earth

Answer 23

Question 24

V of a solid sphere inside the sphere

Answer 24

Question 25

escape velocity formula

Answer 25

Question 26

orbital speed formula of a satellite

Answer 26

Question 27

shape of satellite path depending on orbital speed

Answer 27

Question 28

areal velocity formula

Answer 28

dA/dt = L/2m

L is the Angular momentum

Question 29

geostationary satellite features

Answer 29

Question 30

vernier caliper concept

Answer 30

Question 31

screw gauge concept

Answer 31

Question 32

whats a intermediate in the bromamide hoffman reaction

Answer 32

Question 33

is B2H6 electron deficient

Answer 33

yes

Question 34

is BCl3 electron deficient

Answer 34

yes it is

Question 35

PH3 is electron deficient true or false

Answer 35

false

Question 36

whats the concept of inverse functions and their differentiation

Answer 36

Question 37

OS of 3D series

Answer 37

Question 38

POCl3 with water forms

Answer 38

H3PO4 + HCl

Question 39

chotila method for MOT

Answer 39