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If the is in one medium and the observer in other medium both media being at rest, the time taken to travel from one to the other is fixed for all points of the wavefronts. This means that two wavefronts separated by one time ...

i dont know but i hv this doubt nagging me....... we hv studed that according to gauss law magnetic flux through a closed surface is 0 as no single charge ever exists..... now in electromagentic inudctuion the emf induced is ...

More than 1 option maybe correct. The contact of fuel/flame and the substance to be heated is completely avoided in:- a)reverberatory furnace b)induction furnace c)muffle furnace d)blast furnace ...

does the coefficient of thermal expansion of metals depend on the electronic configuration of the metals? ...

JUST WANT ANSWERS FOR VERIFICATION *Image* For the system shown in figure find: (a) the linear acceleration of hoop (b) angular acceleration of hoop of mass M (c) tension in the rope masses are M and m and radius of hoop is r ...

i dont know but i hv this doubt nagging me....... we hv studed that according to gauss law magnetic flux through a closed surface is 0 as no single charge ever exists..... now in electromagentic inudctuion the emf induced is ...

Prove that if n >3 , then *Image* = 0 ...

100ml, of CH3COOH is titrated against 0.2NaOH. which is/are coreect statements? a. ph>7, at equivalence point b. ph<7 at 3/4th equivalence point c.ph<7 at equivalence point d. ph>7 when 80ml of NaOH is added ...

Which of the following will have permanent dipole moment? A] NO2 CO2 B] NO2 O3 C] SiF4 CO2 D] SiF4 NO2 Please tell the method as well :) ...

as we hv learnt that field outside a solenoid is 0 but here *Image* but here in ncert it is calculating the elctric field at a pnt p successfully so i htink i hv made a mistake the field along the axis of a solenoid is not 0 ...

NO2 AND NO WAS MIXED IN THE RATIO OF 2 :1 AT 300K, IN ONE LITRE VESSEL AND MIXTURE WAS BROUGHT TO EQUILIBIRIUM FORMING TWO EQUILIBRIA 2NO2 <-----> N2O4 Kp=8.48 ATM-1 NO +NO2 <-----> N2O3 THE EQUILIBRIUM PRESSURE W ...

200ml of HCL(aq.) havin ph=2 is mixed with 300ml of NaOH(aq.) having ph =12. concentration of OH-1 in the mixture will be x *10-3, mole/l. value of x is..? a. 1 b. 2 c. 3 d. 4 ...

*Image* the two extreme plates are grounded .........A and B given charge 2Q and 3Q .......find potential difference between A and B .... ...

A car moves uniformly along a horizontal sine curve y = a sin (x / b) , where a and b are constants. The co-efficient of friction between the wheels and the road is equal to k. At what velocity will the car ride without slidi ...

A is a point on circumference of a circle, chords AB and AC divide circle area in three equal parts, f(x)=0 is an equation whose root is angle BAC, then f(x) is equal (A) x-sinx+ \pi /3 (B) x+sinx+ \pi /3 (C) 2[x-sinx+ \pi /3 ...

A large number of sticks (with mass density per unit length ρ) and circles (with radius R) lean on each other, as shown in the figure . Each stick makes an angle θ with the horizontal and is tangent to the next circle at it ...

what will be the product when phenol is treated with nitrous acid??.. Plz tell the mechanism also.. ...

find the remainder wen a)...1399 is divided by 81 b)....22225555 +55552222 is divided by 7 ...

|y|=|x+ex| ...

If y=[tan-1 1/(1+x+x2) + tan-1 1/(x2+3x+3) + tan-1 1/(x2+5x+7) +....] upto n terms,then y'(0) is equal to: a)-1/(n2+1) b)-n2/(n2+1) c)n2/(n2+1) d)none of these ...

Prove: \prod_{k=1}^{n}{\left[ 1+2\cos\frac{2\pi.3^k}{3^n+1}\right]}=1 Source: Titu Andreescu's Book.. ...

(\frac12+cos\frac{\pi}{20})(\frac12+cos\frac{3\pi}{20})(\frac12+cos\frac{9\pi}{20})(\frac12+cos\frac{27\pi}{20})=\frac1{16} This is another problem again from Titu Andreescu's book... (Hint: Chapter: Telescopic products and P ...

Write the type of R-S configuration of the following compounds ..... *Image* ...

This is my doubt....framed this question myself will the battery supply charge in the circuit or will it be dead????? *Image* ...

Agent Sheena somehow managed to break the shackles (literally!) and flee from the triangular room to which she was chained and confined. In the middle of the night while her captors were asleep, she tried to let herself out f ...

this particle mass m moves in a box forth and back with speed v.Considering matter wave associated with particle and knowing that due to back and forth motion standing waves will be produced in box,find a)min.energy to excite ...

no i am not talking abt the holllywood movie... here are two transformtaions... carry them out using proper reagents *Image* ...

A circle of radius 5 units has diameter along the angle bisector of the lines x+y = 2 and x - y = 2. If chord of contact from origin makes an angle of 45° with the positive direction of x axis then the equation of the circle ...

Using Bohr's theory and DeBroglie eqn... Find value of n as used in mvr=nh/2Ï€ *Image* ...

i was searching abt the reactions of grignard reagent in the net.I got these pics. *Image* *Image* *Image* u can see more mindmaps here http://images.google.co.in/images?rlz=1C1GGLS_enIN321IN321&sourceid=chrome&q=grignard+rea ...