Q.6859·Miscellaneous·2018·EasyA ball is released from rest and rolls down an inclined plane, as shown in the following figure, requiring 4 s to cover a distance of 100 cm along the plane: Which one of the following is the correct value of angle θ that the plane makes with the horizontal? (g = 1000 cm/s²)View question
Q.6860·Miscellaneous·2018·EasyAn analysis of monthly wages paid to the workers in two firms A and B belonging to the same industry gives the following result: Firm A: Number of workers = 500, Average monthly wage = ₹1860, Variance of distribution of wages = 81 Firm B: Number of workers = 600, Average monthly wage = ₹1750, Variance of distribution of wages = 100 The average of monthly wage and variance of distribution of wages of all the workers in the firms A and B taken together areView question
Q.6861·Miscellaneous·2018·EasyIf the focal length of a convex lens is 50 cm, which one of the following is its power?View question
Q.6862·Miscellaneous·2018·EasyTwo integers x and y are chosen with replacement from the set {0, 1, 2, …, 10}. The probability that |x – y| > 5 isView question
Q.6863·Miscellaneous·2018·EasyConsider the following velocity and time graph: Which one of the following is the value of average acceleration from 8 s to 12 s?View question
Q.6864·Miscellaneous·2018·EasyWho among the following leaders started the Indian Home Rule League?View question
Q.6865·Miscellaneous·2018·EasyThe set of bivariate observations (x1, y1), (x2, y2), …, (xn, yn) are such that all the values are distinct and all the observations fall on a straight line with non-zero slope. Then the possible values of the correlation coefficient between x and y areView question
Q.6867·Miscellaneous·2018·EasyIf the regression coefficient of Y on X is –6, and the correlation coefficient between X and Y is –1/2, then the regression coefficient of X on Y would beView question
Q.6868·Miscellaneous·2018·EasyWhich one of the following statements about the law of conservation of mass is correct?View question
Q.6869·Miscellaneous·2018·EasyIf the probability of simultaneous occurrence of two events A and B is p and the probability that exactly one of A, B occurs is q, then which of the following is/are correct? 1.P(A ∪ B + P(Ā ∩ B̄) = 2 – 2p – q 2.P(Ā ∩ B̄) = 1 – p – q Select the correct answer using the code given below:View question
Q.6870·Miscellaneous·2018·EasyWhich one of the following is the chemical formula of gypsum?View question
Q.6871·Miscellaneous·2018·EasyIf xi > 0, yi > 0 (i = 1, 2, 3, …, n) are the values of two variables X and Y with geometric means P and Q respectively, then the geometric mean of (xi/yi) isView question
Q.6873·Miscellaneous·2018·EasyThe variance of 25 observations is 4. If 2 is added to each observation, then the new variance of the resulting observations isView question
Q.6874·Miscellaneous·2018·EasyWhich one of the following is an oxidation-reduction reaction?View question
Q.6875·Miscellaneous·2018·EasyConsider the following statements: 1. If 10 is added to each entry on a list, then the average increases by 10. 2.If 10 is added to each entry on a list, then the standard deviation increases by 10. 3. If each entry on a list is doubled, then the average doubles. Which of the above statements are correct?View question
Q.6876·Miscellaneous·2018·EasyWhich one of the following crops was introduced by the Portuguese in India?View question