As you know that the shear modulus, also known as the modulus of rigidity, is a measure of a material's resistance to shear deformation, and since liquids readily deform under shear stress (i.e. readily changes their shape on application of stress so it can be said that NO resisatance ), so their shear modulus is considered to be zero

Mass
Inertia is related to heaviness or lightness.
Velociy is responsible for momentum while inertia can come into play when body is in rest also.

Two vectors will have their vector sum maximum when they act parallel i.e angle between them is zero, option A here.
For mathematical explanation refer to the formula of parallelogram, it will give that resultant (R) will be maximum when the angle is zero.

As we know that from our text book:-
Work and energy has same dimensions so energy upon volume and work upon volume will have same dimensions while work is force*displacement (W= F*d) so work/volume will have dimension of Force/area as volume has dimension of area*length.
Similarly voltage*charge is nothing but work so volatge*charge/volume will have same dimension as work/volume that is same as that for A & B so A,B and D have same dimensions leading to C as correct answer (different from A, B & D)

जहाँ l, शुरुआती लम्बाई (मूल लम्बाई) है | यहाँ " ~ " अंतर का प्रतीक है l या l' में जो भी ज्यादा होगा उससे कम वाले को घटा देंगे |
Fill in the blanks:-
(1). Intensity of bright fringe is ……………………
(2) Intensity of dark fringe is ……………………
(3) Fringe width………………with increase in wavelength. (increases /decreases)
(4) Fringe width………………with increase in separation between slits and screen. (increases /decreases)
(5) Fringe width………………………………with increase in separation between slits (increases /decreases)
(6)If whole setup of YDSE is shifted from air to water its fringe width will………………..(increase /decrease)
(7)Fringes of red color light in YDSE are ………………….than fringes for violet color.(wider/narrower)
(8) Phase difference for waves in constructive interference is …………..
(9) Phase difference for waves in destructive interference is …………..
(10) Dark fringe is due to ………………………. Interference.( destructive/ constructive)
Answers:-
|
1 |
2 |
3 |
4 |
5 |
|
maximum |
Minimum |
increases |
increases |
decreases |
|
6 |
7 |
8 |
9 |
10 |
|
decrease |
wider |
0 degree |
180 degree |
destructive |
Fill in the blanks:-
(1) Magnetic Flux is a ………………………………………….quantity.( scalar/ vector)
(2) Increasing flux due to outward magnetic field in a coil induces…………………………current (clockwise / anticlockwise)
(3) Decreasing flux due to inward magnetic field in a coil induce…………………………current (clockwise / anticlockwise)
(4) A loop in uniform magnetic field (direction perpendicular and into the page) is expanding in area, induced current as per Lenz’s law, will be ……………………………………… (clockwise / anticlockwise)
(5)North pole of a magnet is approaching a loop, induced current will be as seen from side of magnet ……………………………………… (clockwise / anticlockwise) and loop will behave as ……………..pole
(6)South pole of a magnet is approaching a loop, induced current will be ……… (clockwise / anticlockwise) and loop will behave as ……………..pole
(7) A magnets north pole is leaving a loop, induced current will be ……………………………………… (clockwise / anticlockwise) and loop will behave as ……………..pole
(8)South pole of a magnet is leaving a loop, induced current will be ……………………………………… (clockwise / anticlockwise) and loop will behave as ……………..pole
(9) A rectangular loop is rotating in an uniform magnetic field, its flux will be maximum when its surface will make an angle of ………………… with the field.
(10) A rectangular loop is rotating in an uniform magnetic field, its flux will be zero when its surface will make an angle of ………………… with the field.
Answers:-
|
1 |
2 |
3 |
4 |
5 |
|
Scalar |
clockwise |
clockwise |
anticlockwise |
Anticlockwise, north |
|
6 |
7 |
8 |
9 |
10 |
|
Clockwise, South |
Clockwise, South |
Anticlockwise, north |
90 degree |
0 degree |
Fill in the blanks:
(1) In DC, pure Inductor behaves as……………………………..
(2) In DC, capacitor behaves as……………………………..
(3)In DC, capacitor exhibit…………………………..resistance (very high/very low)
(4) Capacitive Reactance………………………………with frequency.(increases/decreases)
(5) In case of resonance, power In an AC circuit is…………………………….( maximum /minimum)
(6) In an AC circuit voltage across capacitor ………………………………the current in it (leads/lags)
(7) In an AC circuit voltage in inductor ………………………………the current in it (leads/lags)
(8)In an AC circuit current in capacitor ………………………………the voltage across it (leads/lags)
(9) In an AC circuit current in inductor ………………………………the voltage across it (leads/lags)
(10) When a rod of soft iron in inserted in an inductor its inductance………………...(increases/decreases)
Answers:-
|
1 |
2 |
3 |
4 |
5 |
|
conductor |
Open circuit |
very high |
decreases |
maximum |
|
6 |
7 |
8 |
9 |
10 |
|
lags |
leads |
leads |
lags |
increases |
Fill in the blanks:
(1)Those substances which readily allow the passage of electricity through them are called…………………
(2) Those substances which offer high resistance to the passage of electricity are called…………………….
(3) Units of Charge in SI unit is……………………..
(4). Electric filed lines start on …………………..charge and end on …………………………. charge
(5) The tangent on these lines at any point gives ……………………………………….. at that point.
(6) Two point charges of same magnitude and opposite nature separated by a small distance altogether form……………………………………………
(7) Electric Dipole Moment is a ……………………………………..quantity (vector / scalar)
(8) Dipole is said to be in stable equilibrium in uniform electric field when angle between p and E is ……………
(9) Dipole is in unstable equilibrium when the angle between p and E is ……………
(10) Equipotential surfaces due to a system of charges…………………. intersect each other (do/ do not)
Answers:
|
1 |
2 |
3 |
4 |
5 |
|
Conductor |
Insulator |
Coulomb |
Positive, negative |
Direction of electric field |
|
6 |
7 |
8 |
9 |
10 |
|
Electric dipole |
vector |
0 degree |
180 degree |
Do not |