Q.12619·Miscellaneous·2013·EasyThe plot given above represents the velocity of a particle (in m/s) with time (in seconds). Assuming that the plot represents a semi-circle, distance traversed by the particle at the end of 7 seconds is approximatelyView question
Q.12620·Miscellaneous·2013·EasySuppose we have an iron nail and an iron ball of same mass. When submerged in water, the iron ball may float but the nail always sinks. This is becauseView question
Q.12622·Miscellaneous·2013·EasyBats can know about their prey at a distance even in the night by emittingView question
Q.12623·Miscellaneous·2013·EasyRays of light get refracted while passing from air to glass becauseView question
Q.12624·Miscellaneous·2013·EasyWhite light while passing through a glass prism breaks up into light of different colours becauseView question
Q.12625·Miscellaneous·2013·EasyWhich one of the following measures is determined only after the construction of cumulative frequency distribution?View question
Q.12626·Miscellaneous·2013·EasyConsider the following statements : 1. Both the regression coefficients have same sign. 2. If one of the regression coefficients is greater than unity, the other must be less than unity. Which of the above statements is/are correct?View question
Q.12627·Miscellaneous·2013·EasyWhich one among the following situations is best represented by the velocity – time plot shown above?View question
Q.12628·Miscellaneous·2013·EasyThe arithmetic mean of the squares of the first n natural numbers isView question
Q.12629·Miscellaneous·2013·EasyWhen long dry hair is brushed the strands often move away from each other because while brushingView question
Q.12630·Miscellaneous·2013·EasyThe mean of 20 observations is 15. On checking, it was found that two observations were wrongly copied as 3 and 6. If wrong observations are replaced by correct values 8 and 4, then the correct mean isView question
Q.12631·Miscellaneous·2013·EasyIf a = 2i + 2j + 3k, b = -i + 2j + k and c = 3i + j are three vectors such that a + tb is perpendicular to c , then what is t equal to?View question
Q.12632·Miscellaneous·2013·EasyWhat is the value of p for which the vector p(2i - j + 2k) is of 3 units length?View question
Q.12633·Miscellaneous·2013·EasyA mixture of sodium chloride and naphthalene can be separated byView question
Q.12634·Miscellaneous·2013·EasyIf the length of a simple pendulum is being increased by 4-fold, time period of oscillation will beView question
Q.12635·Miscellaneous·2013·EasyThe pH of the solution obtained by dissolving pure sodium chloride in water isView question
Q.12636·Miscellaneous·2013·EasyOxygen on reaction with non-metals forms oxides, which areView question