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Zilla Panchayat, Taluk Panchayat and Gram Panchayat.

In region-I: Magnetic field due to 2A and 3A current wire is in opposite direction.

In region-II:- Here, also magnetic field due to 2A and 3A currents wire is in opposite direction.

But, it is highly probable, in region I, that we can have neutral points, because

B₁ = \(\frac{2\mu_o}{2\pi R_1}\) ; B₂ = \(\frac{3\mu_o}{2\pi R_2}\)

for region I, R₂ > R₁ and I₂(3A) > I₁(2A) and B₁ and B₂ are in opposite directions, so net magnetic intensity will become zero at existing neutral point.(highly probable).

Explanation by showing magnetic field directions in all three regions Concluding left of region 1.

1. b) Its critical angle with reference to air is too small 

2. a) 2.42 

3. c) high refractive index 

4. d) increase 

5. d) less than first

Floating is a way to pause the hectic, saturated world and enter a state of deep mental and physical relaxation. Otherwise known as floatation-REST (restricted environmental stimulation technique) or sensory deprivation, floating is backed by research and offers immense potential for personal growth and healing.

Answer: Its critical angle with reference to air is too small 

Black holes don't have a bottom. A black hole is a region of infinitely warped space-time around what's called a singularity, which in turn is a collapsed star (among other options). A singularity is infinitely compressed. 

An artery is a vessel that carries blood away from the heart.

Correct option is (a) (i) and (ii) only

Magnetic properties of solid – The magnetic properties of a substance depend upon magnetic moment of the substance. The matter is made of atoms. In atom, there is nucleus and electrons are revolving round the nucleus. The moving electron is considered as small electrid loop. This small electric loop produces magnetic field. This is the reason that there creates magnetic properties in solid substances.  

There are 4 single bonds, 1 double bond, 4 triple bonds in the molecule of tetracyanoethylene 

So, there is 4+1+4 = 9 sigma bonds & 0+1+(2×4) = 9 pi bonds

Given, \(\phi=2.14\,ev\) 

v = 6 x 10¹⁴

h = 6.63 x 10^-34 55 Js

(a) Energy of photon E = hv

E = 6.63 x 10^-34 x 6 x 10¹⁴

E = \(\frac{39.78\times10^{-20}}{1.6\times10^{-19}}\) 

E = 24.86 x 10^-1

E = 2.48 ev

(b) Maximum kinetic energy of photo electron

k = hv - \(\phi\)

k = 2.48 - 2.14

k = 0.34 ev

Please refer to NCERT or CBSE website for question papers of the latest pattern.

Stanza:

He hears the last voice at night, /The patrolling cars,

And stares with his brilliant eyes /At the brilliant stars.

Word-meanings: Patrolling: moving about to check any danger Brilliant: shining

Explanation: 

The poet again takes the reader to the cage where the tiger is sitting in the cage and feeling unpleasant and restless. He hears the sound created by the patrolling cars of the zoo authorities. He shows no interest in them. The poet shown him staring at the shining stars with his brilliant eyes.

Thus the poem ends up at the point where it had started.

The poet raises a moral issue here. He intends to present a strong case against the cruelty on animals, which are kept in cages.

1m = 100 cms

760 cm = 7.6 metres 

hope it is helpful

Amperes Circuital Law: The Ampere’s Circuital law is used to calculate the magnetic field due to distributed currents. It is analogous to Gauss law in Electrostatics, which calculates the electric field due to distributed charges. Ampere Circuital Law formula gives a method to calculate the magnetic field due to a given current distribution. We have studied the continuous distribution and discrete distribution of charges and masses.

Answer: C.cd

Work is a method of transferring energy and heat is a form at energy. Molecular work is the orderly transfer of energy in one direction while heat is the random molecular vibration work is accounted far in terms of change in the macroscopic physical variable of the system. Heat is vibrational molecules at microscopic thermal particles level.

It was Joule who first discovered that work and heat are mutually convertible and gave an equation. where Q is heat raised of the system, W is work done on the system and j is a proportionality constant. Work is totally convertible into equal amount heat but total heat cannot be converted into an equal amount of work.

Systematic errors can be minimised by improving experimental techniques, selecting better instruments and removing personal bias as far as possible. For a given set up, these errors may be estimated to a certain extent and the necessary corrections may be applied to the readings. 

(D) i – x, ii – z, iii – y

Work : The product of magnitude of displacement (S) and component of force (Fcosθ) along the direction of force is called

work. i.e., W =  vector F.S  = F S cos θ.

Unit → Joule;

Power : The rate of doing work by a force is called power.

P = w/t, Unit → watt (or) J/S

Energy : The capacity to do work is called energy.

Unit → Joule

(i) Gravitational force

(ii) Electromagnetic force

(iii) Strong nuclear force

(iv) weak nuclear force.

A raw egg has some fluid in it and a hard boiled egg is solid form inside. Both eggs are spinning on a table top, the fluid is thrown outwards. Therefore (I_r > I_b) That means M. I of raw egg is greater than boiled egg. As I ω = constant;

ω_r < ω_b. That means Angular Velocity of raw egg is less than angular velocity of boiled egg.

Polar satellites are low altitude satellites (500 to 800 km), but they go around the poles of the earth in a north-south direction. Its time period is around 100 minutes.

Moment of force about pivot A (80 N force) 

=80×3/2×sin30^o

= 60 N-m (anticlockwise) Moment of force about pivot A (70 N force) 

=70×3×sin30^o=70×3×1/2

 = 10⁵ N-m (anticlockwise) Moment of force about pivot A (60 N force) 

=60×3/2×sin90^o

 = 90 N-m (clockwise) Moment of force about pivot A (90 N force) 

=90×0×sin60^o=0

 Moment of force about pivot A (50 N) 

=50×3×sin180^o=0

 The total torque about pivot A 

T=(60+105−90)

 = 75 N-m

Answer(1)

If a carved black utensil is heated to high

temperature and then brought in dark then:

(1) Both utensil and its carving will shine

(2) Only carving will shine

(3) Only utensil will shine

(4) None of the utensil and carving will shine.

Both utensil and its carving will shine.

The reason is that the thermal radiation are emitted spontaneously by many ordinary objects.

Therefore this phenomenon can be called as black-body radiation.

When a body absorbs so much heat then it emits thermal radiations according to its temperature.

Correct answer is (3) adiabatic

Free expansion i.e. expansion against vacuum is adiabatic in nature for all type of gases. It should be noted that temprature final temperature is equal to initial temperature for ideal gases.

Correct answer is (1) 470 Ω, W, 5% 

R = 47 × 10¹ ± 5% 

R = 470 Ω, W, 5% 

PV diagram is a graph between pressure P and volume V of the system. The P-V diagram is used to calculate the amount of work done by the gas during expansion or on the gas during compression.

The persistence of audible sound after the source has ceased to emit sound is called reverberation.

The motion of the particles in a random and zig-zag mannar in a fluid is called Brownian motion.

(a) Conductor

(b) 25 degrees C

The correct answer is: (b) Crystal

The correct answer is: (a) 0

The correct answer is: (b) 14

The correct answer is: (b) +1