• Male, 47 Years
• Activity Score2162

Rajan M

• I teach at My Home
• Online
• Qualification:
B.Tech/B.E.
• Experience:
teaching mathematics and physics for 25 years. Classes for CBSE JEE NEET. Certain subjects of Engineering at UG Level like engg mathematics, applied mechanics etc.
• Teaches:
Science, Physics, Mathematics, Chemistry, Biology, IIT JEE Mains, IIT JEE Advanced, NEET, AIPMT, Mechanics, Mechanical
• Board:
CBSE, CBSE Board
• Areas:
• Pincode:
110035
Profile Details

Qualification :

 B.Tech/B.E. dce 1992

Total Experience :

25 Years

teaching mathematics and physics for 25 years. Classes for CBSE JEE NEET. Certain subjects of Engineering at UG Level like engg mathematics, applied mechanics etc.

Tutoring Option:

I Can Manage Both

Tutoring Approach:

teaching according to requirements and ability of my students.

Hourly Fees [INR]:

1200.00

 Class 9 - 10 Mathematics, Physics, Chemistry, Biology, Science, CBSE INR 600.00 /hour Class 11 - 12 Mathematics, Physics, CBSE Board INR 1000.00 /hour Engineering Entrance & IITJEE Mathematics, Physics, IIT JEE Mains, IIT JEE Advanced INR 1200.00 /hour Engineering Subjects Mathematics, Mechanical, Mechanics INR 1200.00 /hour Medical Entrance & AIPMT Physics, AIPMT, NEET INR 1000.00 /hour
• Question: Two railway tracks are parallel to west-east direction. Along one track, train A...

Posted in: Physics | Date: 11/07/2018

• Question: A mass of 2 kg is placed on a trolley of 20 kg sliding on a smooth surface the c...

Posted in: Physics | Date: 11/07/2018

a=1/11

f=20/11 N

• Question: A cylindrical wire is stretched to increase its length by 10% .the percentage in...

Posted in: Physics | Date: 11/07/2018

B . 21% is correct. explanation in attached picture

• Question: What is the only liquid metal?

Posted in: IIT JEE Mains | Date: 12/07/2018

mercury Hg

• Question: In the same question if the shm equation was X=7cos(0.5×pai×t) then how to sol...

Posted in: Physics,IIT JEE Mains,IIT JEE Advanced | Date: 12/07/2018

please specify the question as to what needs to be found out

• Question: Is a bromine a metal? Please explain.

Posted in: IIT JEE Mains | Date: 12/07/2018

it is a non metal as it exhibits electronegativity to attain stability.

• Question: What element is Si?

Posted in: IIT JEE Mains | Date: 12/07/2018

Si is silicon which is a semiconductor

• Question: Two wires one of copper and other of manganese have equal length and equal resis...

Posted in: Physics | Date: 13/07/2018

Mangnese wire should be thicker to compensate for it's higher resistivity .

• Question: What is the formula for acceleration?

Posted in: Physics | Date: 13/07/2018

a=(v-u)/t

a= acceleration

u=initial velocity

v=final velocity

t= time taken

• Question: What is relation between °c and °f

Posted in: Physics | Date: 13/07/2018

F=(9/5).C + 32

• Question: Why can't we use a clinical thermometer to check temperature of other object...

Posted in: Physics | Date: 13/07/2018

clininical thermometer has only limited range to measure body temperature which is 37C. hence not useful for large variations like melting ice (0 C ) and boiling water (100 C)

• Question: What is the use of friction?

Posted in: Physics | Date: 13/07/2018

It is a necessary evil. Almost everything is facilitated by friction

• Question: On what factors the pressure depends

Posted in: Physics | Date: 13/07/2018

for ideal gases PV= nRT

This gives variation of pressure with various factors

• Question: persistence of hearing of average people

Posted in: Physics | Date: 13/07/2018

It is the inability of human beings to distinguish to sound pulses which are very close in time. For average people this limit is 0.1 s that is we can not distinguish two sounds closer than 0.1 s

• Question: Which of these particles determine the chemical properties of an atom

Posted in: NEET | Date: 13/07/2018

electrons and their configuration . hence C

• Question: Does average is tk be find for uniform motion also.

Posted in: Physics | Date: 13/07/2018

It is unnecessary to find average values of speed and velocity in uniform motion.

• Question: Find X $\cap$ (X $\cup$ Y ) = ?

Posted in: Mathematics | Date: 13/07/2018

• Question: if the area of the curved surface area and total surface area of the cone is 3:4...

Posted in: Mathematics | Date: 13/07/2018

• Question: The time taken by a alternating current of 50 Hz in reaching from zero to maximu...

Posted in: Physics | Date: 13/07/2018

• Question: Two coherent sources of different intensities send waves which interfere. The ra...

Posted in: Physics | Date: 13/07/2018

9:4

• Question: What are the units of K = $\frac {1}{4\pi\varepsilon_0 }$?

Posted in: Physics | Date: 13/07/2018

B is correct

• Question: What is the SI unit of universal gas constant (R) ?

Posted in: Physics | Date: 13/07/2018

From PV=nRT

SI unit of R is J/mol/K

• Question: What is magnetic dipole moment?

Posted in: Physics | Date: 13/07/2018

• Question: Can you breathe on the moon?

Posted in: Physics | Date: 13/07/2018

lack of atmosphere does not permit natural breathing.

• Question: Why do you have to wear a spacesuit on the moon?

Posted in: Physics | Date: 13/07/2018

spacesuit simulates earth's atmosphere and protects the astronaut against harmful radiations

• Question: Can you die from breathing in water?

Posted in: Physics | Date: 13/07/2018

most likely yes because our body can't utilize oxygen dissolved in water.

• Question: Is it cold on space?

Posted in: Physics | Date: 13/07/2018

expect extreme fluctuations in temperatue due to absence of atmosphere

• Question: What is the exact gravity of Earth?

Posted in: Physics | Date: 13/07/2018

9.81 m/s2 is the average value. It varies from place to place and also with height and depth below surface of earth

• Question: How gravity is produced?

Posted in: Physics | Date: 13/07/2018

It is due to force of attraction between various objects by virtue of their mass

• Question: When the electric potential is zero?

Posted in: Physics | Date: 13/07/2018

It depends upon choice of reference . Generally at infine distance from system of charges

• Question: Which is faster red or violet light?

Posted in: Physics | Date: 13/07/2018

In vacuum all wavelengths of light have same speed. In any other medium Red travels faster than Violet

• Question: What are the two types of diffraction?

Posted in: Physics | Date: 13/07/2018

Fraunhoffer and Fresnel class of diffraction

Fresnel diffraction: produced when light from a point source meets an obstacle, the waves are spherical and the pattern observed is a fringed image of the object. Fraunhofer diffraction: occurs with plane wave-fronts with the object effectively at infinity.

• Question: What is interference pattern of light?

Posted in: Physics | Date: 13/07/2018

In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude. Interference usually refers to the interaction of waves that are correlated or coherent with each other, either because they come from the same source or because they have the same or nearly the same frequency. Interference effects can be observed with all types of waves, for example, light, radio, acoustic, surface water waves or matter waves

• Question: What is interference fringes?

Posted in: Physics | Date: 13/07/2018

It is a pattern of alternate bright and dark regions observed due to interference of light.

• Question: Why are the interference fringes circular in Newton's ring?

Posted in: Physics | Date: 13/07/2018

Newton's rings is a phenomenon in which an interference pattern is created by the reflection of light between two surfaces—a spherical surface and an adjacent touching flat surface. It is named for Isaac Newton, who first studied the effect in 1717. When viewed with monochromatic light, Newton's rings appear as a series of concentric, alternating bright and dark rings centered at the point of contact between the two surfaces. When viewed with white light, it forms a concentric ring pattern of rainbow colors, because the different wavelengths of light interfere at different thicknesses of the air layer between the surfaces.

These are circular because points on the lens corresponding to constant thickness of air film lie on a circle

• Question: Why Germanium is preferred over the silicon?

Posted in: Physics | Date: 13/07/2018

It has lower energy gap and hence higher conductivity

• Question: Can you make a transistor out of two diodes?

Posted in: Physics | Date: 13/07/2018

No. Three layers of NPN or PNP must be created in the same crystal

• Question: What would cause a diode to fail?

Posted in: Physics | Date: 13/07/2018

large current is common cause

• Question: A point object O is kept at a distance of 30 cm fr...

Posted in: Physics | Date: 13/07/2018

50 cm

• Question: A point object O is kept at a distance of 30 cm fr...

Posted in: Physics | Date: 13/07/2018

50 cm

• Question: why is that for uniform electric field equipotential surface is a plane

Posted in: Physics | Date: 14/07/2018

E is normal to EPS at every point. Since direction of E in uniform field is constant hance EPS is a plane normal to E

• Question: A car moves for half of its time at 80 km/h and for rest of the time at 40 km/h....

Posted in: Physics | Date: 14/07/2018

average of speeds for two half times ie. (80+40)/2=60 is the correct answer

• Question: If distance between slits and the screen is doubled and slit separation is halve...

Posted in: Physics | Date: 14/07/2018

fringe width becomes 4 times . however angular fringe width is doubled

• Question:

Posted in: Physics | Date: 14/07/2018

w= - 20 J

Q = - 40 J

change in U = Q - w = -20 J

U final = U initial - 20 = 70- 20 = 50 J

• Question: What do we mean by rectilinear motion?

Posted in: Physics | Date: 14/07/2018

Any thing travelling in a straight line path is said to be in rectilinear motion .

• Question: What are the laws of motion?

Posted in: Physics | Date: 14/07/2018

Laws of motion define, quantify and characterize effect of forces in motion

• Question: What are the types of translatory motion?

Posted in: Physics | Date: 14/07/2018

The motion in which all the particles of a body move through the same distance in the same time is calledtranslatory motion. There are two types oftranslatory motions: rectilinear motion; curvilinearmotion

• Question: What is the difference between real and ideal gas?

Posted in: Physics | Date: 14/07/2018

Ideal gases are a mathematical approximation of real gases defined through Kinetic theory of gases. Ideal gases obey PV=nRT while real gases obey it only at low P and High T

• Question: What happens when there is an unbalanced force?

Posted in: Physics | Date: 14/07/2018

An unbalanced force acting on object produces acceleration . (Newton's Second law of motion)

• Question: What is the value of the angle between the vectors $\overrightarrow p$&nb...

Posted in: Physics | Date: 14/07/2018

180

• Question: a person of mass 50 kg standing on a spring balance ,suddenly jumps from the spr...

Posted in: Physics | Date: 16/07/2018

There will be momentary increase in reading due to force needed to propel the person upwards

Male, 39 Years

Male, 24 Years

Male, 24 Years

Male, 37 Years

Rupesh K

Male, 19 Years
• Experience: NIL
• Qualification: B.Tech/B.E.
• Teaches:Physics, Mathematics, NTSE, Chemistry, IIT JEE Advanced, IIT JEE Mains...
• Areas: Karol Bagh

Male, 20 Years

Umesh S

Male, 19 Years
• Experience: NIL
• Qualification: 12th
• Teaches:Physics, Mathematics, Chemistry, Algebra
• Areas: Karol Bagh

Shubhankar N

Male, 24 Years
• Experience: NIL
• Qualification: B.Tech/B.E.
• Teaches:Physics, Mathematics, Social Studies, Chemistry, AIEEE
• Areas: Karol Bagh