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1)The uncertainty in the location of circulating electron is equal to its de-broglie wavelength. The minimum percent error in its measurement of velocity under this circumstances will be approximately a)4 (b)8 (c)18 (d)22 2)T ...
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1)It is said that separation between the two charges forming the dipole should be small, but small compared to what? 2)The electric potential decreases uniformly from 120 V to 80V as one moves on the X axis from -1 cm to +1cm ...
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1) Find the domain of f(x) = cos^{-1}\sqrt{log_{[x]}(\left|x \right|/x)} ...
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1)Two photons having a) equal wavelength have equal linear momenta b)equal energies have equal linear momenta c)equal frequencies have equal linear momenta d)equal linear momenta have equal wavelength. ans (d) now here if (d) ...
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1)In how many ways can the letter of the word 'ARRANGE' be arranged so that a)the 2 A's are together but not the 2 R's ? b)neither the two A's nor the two R's are together? 2)How many numbers greater than 10000 can be formed ...
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Help me find the domain of the following functions. 1)f(x) = √(x2 - l x l - 2) Here am getting 2 cases when x≥0 and x<0, for x≥0 am getting the value of x as x≥2 and for x<0 am getting x≥-2 and x≥1, please t ...
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1) Can SN1 reaction take place with E2 ? If yes, then when and why ? 2)What would be the effect of increasing solvent polarity on the rate of the given substitution reaction:- R------L+ → R+ + :L 3)Why phenyl halide is unre ...
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1)Why when a convex lens having radius of curvature R, focal length f and refractive index μ is bisected horizontally along the principal axis its focal length remains the same, whereas when it is bisected vertically focal l ...
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I can find the domain and range when there is a case of composition of general function. But,I face difficulty in finding out the range and domain of real functions. Am posting some doubts, please help me out. 1)Let f be a re ...
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1)Is the formula 'real depth/apparent depth =μ " valid if viewed from a position quite away from the normal? 2) Can there be a situation in which a light ray passes through a prism undeviated? I think it happens in grazing i ...
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1)A particle moves perpendicularly towards a plane mirror with constant speed of 4cm/s. What is the speed of the image observed by a observer moving with 2cm/s along the same direction? Mirror is also moving with a speed of 1 ...
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1)Modulus Function if a, b are positive real numbers,then x2 ≥ a22 <=> lxl ≥ a <=> x ≤ (-a) or x ≥ a. HOW x ≤ (-a) ? 2) Greatest Integer Function [x] > k => x ≥ k + 1, where k is an integer. Plea ...
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1) Let R be a relation on N defined by x + 2y = 8. The domain of R is (a) {2,4,8} (b) {2,4,6,8) (c){2,4,6} (d) {1,2,3,4) . Give the reason to your answer. 2)The relation 'R' in NxN such that (a,b) R(c,d) <==> a+d=b+c. H ...
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Well, today our TargetIIT is completing its second year. Let's wish it all the best for coming future. ...
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1)Why can the use of high temperatures in the catalytic hydrogenation of alkenes to alkanes be self-defeating ? 2)Provide an explanation for the fact that all trans-1,2,3,4,5,6-Hexaisopropylcyclohexane is a stable molecule in ...
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Where is Nishant Sir and other teachers of tiit these days? I really miss their posts, their answers and their views that they give while solving doubts. [2][2] ...
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1)Why the speed of the image on an object moving with constant speed increases as it moves nearer and nearer to a stationary mirror? 2)How to make use of sign convention in ray optics while solving numericals? ...
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1)The water is electrolysed in a cell, hydrogen is liberated at one electrode and oxygen simultaneously liberated at the other. In a particular experiment hydrogen and oxygen so produced were collected together and the total ...
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1) A student says that he had applied a force F = - k√x on a particle and the particle moved in SHM. He refuses to tell whether k is constant or not. assume that he has worked only with positive x axis and no other forces a ...
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1)Can simple harmonic motion take place in a non inertial frame? If yes, should the ratio of the force applied with the displacement be constant? 2)Can a potential energy in a SHM be negative? Will it be so if we choose zero ...
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1) Is there any meaning of "Weight of the Earth"? I think it has, but it will be different for different planets and stars since they have different masses, so they'll be attracting earth towards themselves with different mag ...
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1) Why and how any root of an imaginary number is an imaginary number? I would be grateful if someone give me a deep knowledge about it. :) ...
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1)For which of the following reversible reactions Kp may be equal to 0.5 atm and how? a)PCl5 ---------------> PCl3 + Cl2 b)N2 + 3H2 ---------> 2NH3 c)2NO2 ---------------------> N2O4 2)A 1 litre container contains 2 ...
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1)In a solid AB of NaCl structure. A atoms occupy the corners of the cubic unit cell. If all the the corner atoms are removed then the formula of the unit cell, 2)The p type semiconductors is obtained when Si is doped with (a ...
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1)The torque of the weight of any body about any vertical axis is 0. Is it always true? 2)A sphere rolls on a horizontal surface. Is there any point of the sphere which has a vertical velocity? 3) When several forces acts on ...
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1)A shell is fired from a cannon with a velocity V at an angle θ with the horizontal direction. at the highest point in it path it explodes into two pieces of equal masses. One of the pieces retraces its path to the cannon. ...
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1)The specific gravity of CCl4 vapour at 273K and 76 cmHg in grams/litres ? 2)A monoatomic gas, a diatomic gas and a triatomic gas are mixed, taking one mole of each, the Cp/Cv for the mixture is ? 3)One mole of an ideal mono ...
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1)Consider two observers moving with respect to each other at a speed v along a straight line. they observe a block of mass m moving a distance l on a rough surface. Which of the following quantities will be same as observed ...
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1) Internal forces can change the linear momentum of portion of the system, but they can't change the the total linear momentum of the entire system. WHY? 2)How can the centre of mass of a body be at a point outside the body, ...
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1) If 5 litres of H2O2 produce 50 lites of O2 at NTP, H2O2 is a)50V b)10V c)5V d)250V I am not able to understand this question. What is it asking? 2)Assuming that petrol is octane & has density 0.8 g/ml, 1.425 litres of petr ...
