Qn 3 is an error question. So each error is either + or -. Since Y = a^2/bc, the error of Y = 2xerro

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The total amount of energy to turn the substance from a solid at 0 o C to a liquid, and to raise the temperature of it to 90 o C requires approximately as much energy to vaporize all of the substance at boiling temperature.
5. What thermodynamic temperature is equivalent to 323.45 o C? 50.70 K 50.71 K 596.60 K 596.61 K 6. A solid X is in thermal equilibrium with a solid Y, which is at the same temperature as a third solid Z. The three bodies are of different materials and masses. Which one of the following statements is correct? There is no net transfer of energy if X is placed in thermal contact with Z. It is not necessary that Y should be in thermal equilibrium with Z. X and Y have the same heat capacity. Y and Z have the same internal energy. 7. The velocity-time graphs represent the motion of a bus and a car, which started from the origin. At which times, A, B, C or D were the displacements of the two objects equal?
A B C D 8. Three bombs are projected vertically upwards relative to a tank, which is traveling horizontally at a constant speed to the right. They are projected one by one at one-second intervals. Neglecting air resistance, which of the following diagrams correctly shows the positions of the tank and the three bombs at a certain instant of the upward flight?
A B C D 15. What is the power required to give a body of mass m a forward acceleration a when it is moving with velocity v up a frictionless track inclined at an angle to the horizontal? mavg sin mav sin + mgv
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X is a heavy pendulum with the frequency f x of which can be varied. Y is a lighter pendulum of fixed frequency f y . As the frequency of oscillation of X is increased by shortening marriott hotels in england the thread, the amplitude of the oscillation of Y changes. Which of the following graphs best represents the relationship between the amplitude a y of the oscillation of Y and the frequency f x of X ?
A B C D 22. The smallest distance between two points of a progressive transverse wave which have a phase difference of /3 rad is 0.050 m. If the frequency of the wave is 500 Hz, what is the speed of the wave?
What would be the speed and wavelength of the wave if the frequency is doubled and other physical conditions remain constant? speed is the same, wavelength is halved speed is the same, wavelength is doubled speed is doubled, wavelength is the same both speed and wavelength are doubled 24. A lamp emits light of two distinct wavelengths, x and y. When the lamp is used as a source for a diffraction grating experiment, it is found that the second order maximum for wavelength x occurs marriott hotels in england at precisely the same angle as the third order maximum for wavelength y. The ratio x to y is therefore 2 3/2 2/3 1/2
Qn 3 is an error question. So each error is either + or -. Since Y = a^2/bc, the error of Y = 2xerror of a -(error of b+error of c). If this question ask for consequential uncertainty of Y, then the maximum uncertainty is equal to the sum of all the uncertainties of a, b, c.
I think I got the answer to your qn. I downloaded the solution from our matrix2 marriott hotels in england and post it in this page. Please download and check soln to qn 4. It is a choice of A or B. The equation to plot is v = (u^2 2gs)^1/2. So you are finding the graph for v vs square root of u^2-2gs. The closest answer is A.
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