Call me

Have a Query? We will call you right away.

+91

E.g: 9876543210, 01112345678

We will give you a call shortly, Thank You

Office hours: 9:00 am to 9:00 pm IST (7 days a week)

What are you looking for?

Syllabus

speed c: light in vacuum to the speed of light in glass,)is found to vary with the

wavelength µ = A + B/λ2

where A and B are constants. Using the principle of homogeneity determine the

dimensions and SI units of A and B

Please explain each and every step with reason as i coudn't understand the steps of this in NCERT

is the net electric flux coming out of the sphere? (zero)

If P,Q,R are physical quantities, having different dimensions, which of the following combinations can never be a meaningful quantity (a) (P-Q)/R (b) PQ-R (c) PQ/R (d) (R+Q)/P- 1degree54minutes
- 0degree 30minutes

into radians2) Where must an 800N object be hung on a uniform rod of weight 100 N so that a girl at one end supports 1/3rd of the weight as compared to that supported by a woman at the other end?

3) A metre stick is balanced on a knife edge at its centre. When two masses each of mass 15 g are put one on top of the other at the 22.0 cm mark, the stick is found to be balanced at 45.0 cm. What is the mass of the metre stick?

4) a. If ice on the polar caps melts, how it affect the duration of the day b. How acrobats make use the principle of conservation of momentum c. A boy is standing on a turn table rotating at constant angular speed. If he stretches his hands outward how the angular speed of the table affected? d. How you distinguish a raw egg and boiled egg using law of conservation of angular momentum? (both are identical in mass)

5) A student stands at the centre of a turntable with his two arms outstretched. The turntable is set rotating with an angular speed of 80 rev/min. How much is the angular speed of the child if he folds his hands back and thereby reduces his moment of inertia to 2/5 times the initial value ? Assume that the turntable rotates without friction. (b) Show that the child’s new kinetic energy of rotation is more than the initial kinetic energy of rotation. How do you account for this increase in kinetic energy?

but in meritnationpptformula is |delta x| = x mean - x1

which one is correct?

^{2})/at where E is energy, x is distance and t is time.section 25 cm2 is placed in a three dimensional coordinate

system as shown in the figure. The electric field in the

region is given by E =A x i, A =50 where all quantities in SI

units. Find (i) Net flux through the cylinder. and (ii) Charge

enclosed by the cylinder.

Ans: ɸ = 0.125Vm, Q = 1.1 x pC

Ans - 5/3F, 4/3F and 3F

Please show step by step working

pls answer the question with the same values , don'thyperlink a sum of the same kind.

Thank u sooo much

I attended the unit and measure test- i could get only 66% - need your help to enhance my score..

Want your feedback on the area of improvement.

Regards

V. Sourish

Given X=a

^{2}b^{1/3}/ c^{3.}find the error percentage of X if the percentage of errors in a,b,c are 2,4, and 5 respectively.sir please clarify my doubt.

21.1,21.2,21.7,28.8 and 21.3

What will the relative and percentage error in the focal length?

Pls help imnot getting the ans..