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In the following question, two statements are numbered as A and B. On solving these statements we get quantities A and B respectively. Solve for the both quantities and choose the correct option. Quantity A: Two powders P and Q are to be mixed in ratio 4 ∶ 7 to form a mixture. If 28 kg of powder P and 28 kg of powder Q is available, how much powder Q is more required to make the desired mixture? Quantity B: A mixture is formed by mixing 16 kg of powder X and 25 kg of powder Y. How much powder X is required to be mixed with 40 kg of powder Y to make a mixture of the same ratio?
Consider the Atomic Packing Factor (APF) of the following crystal structures:
P. Simple cubic
Q. Body centred cubic
R. Face centred cubic
T. Hexagonal close packed
Which two of the above structures have equal APF?
Consider X-ray diffraction from a crystal with a face centred cubic (fcc) lattice. The lattice plane for which there is no diffraction peak is
6 faces of a cube is painted with different colour. Red face is opposite to the black face. The face adjacent to the bottom face is white. Brown face is adjacent to blue face. Red face is at the bottom. Which face will be on exactly opposite to the brown face.
A, B, C, D, E and F are six girls who use 6 different face wash – Pond’s, Lakme, Lotus, Garnier, Himalaya and Kaya (but not necessarily in the same order). They also like six different colours – Red, Blue, Brown, Peach, Black and White (also not necessarily in the same order. A and C do not like a Red colour. The girl who uses Lakme face wash likes Peach colour. The girl who likes White colour does not use Kaya nor Lotus face wash. B neither likes Peach nor Red colour. D does not like a Blue colour but uses a Lotus face wash. The girl who uses Pond’s face wash likes Red colour. C does not use Lakme face wash nor likes white colour. F neither uses Himalaya nor Kaya face wash but likes Brown colour. Who does use Himalaya’s face wash?
For a cubic metal with lattice parameter of 3.92°A, the first four diffraction peaks from the X-ray powder diffraction pattern taken with Cu-Ka radiation (λ = 1.5405°A) occur at 2θ values of 39.7, 46.2, 67.5 and 81.3 degrees. The crystal structure of the metal is
108 kg of mixture C was prepared by mixing equal quantities of mixtures A and B, made up of chalk powder and brick powder, such that the ratio of chalk and brick powder in mixture C is 17 ∶ 10. If mixture A comprised of 22 kg chalk powder, how much brick powder was present in mixture B?
A cubic material is made by melting three smaller cubic materials of sides 6, 8, and 10 cm. The total surface area of new cubic material so formed is what percent of the total surface areas of all small cubic materials?
Rohan put 9 cards on a table, some face up and the rest face down. How many were put face down? A. Rohan put an even number of the cards face up. B. Rohan put twice as many of the cards face up as he put face down. Select the correct answer from the options given below:
Each of the six faces of a cube is numbered by one of the six digits from 1 to 6. This cube is shown in its four different positions in the figures 1, 2, 3 and 4.
Cubes and Dice mcq question image
Consider the following statements:
I. Figures 2 and 3 are sufficient to know as to which face is opposite to the face numbered 6.
II. Figures 2 and 3 are sufficient to know as to which face is opposite to the face numbered 4.
III. Figures 1 and 4 are sufficient to know as to which face is opposite to the face numbered 3.
Which of the statements given above are correct?