CBSE Scholarship – Contest Email ID Whatsapp Number Full Name The product of any two rational numbers is always an irrational number always a rational number always an integer sometimes rational, sometimes irrational If a, b, c are the lengths of three sides of a triangle, then area of a triangle , where s = perimeter of triangle. False True √3 is a polynomial of degree of 2 1 0 1/2 Signs of the abscissa and ordinate of a point in the fourth quadrant are respectively. +, + –, – –, – +, – Can we draw a circle through 3 non-collinear points? Yes No If each observation of the data is increased by 5, then their mean : remains the same becomes x times the original mean is increased by x is decreased by x Total surface area of a cone is: 2πr (r + h) πr (l + r) 4πr² πrl In a cylinder, if radius is halved and height is doubled, the volume will be same doubled halved four times A quadrilateral whose diagonals are perpendicular to each other but do not bisect each other. Parallelogram Kite Rhombus Rectangle The equation 2x + 5y = 7 has a unique solution, if x, y are: Natural numbers Positive real numbers Real numbers Rational numbers Name the property because of which ice at 0⁰C is better at cooling than 0⁰C water. Specific heat capacity Latent heat of vaporisation Latent heat of fusion Heat Capacity Which one out of these is not a pure substance? Sodium Table salt Cheese Copper How much mass does 1 mole of Oxygen gas have? 16 g 32 g 8 g 24 g Isobars are element with _____ atomic numbers and _____ atomic masses. Different; Same Same; Different Same;Same Different; Different Which of these is not an animal tissue? Collenchyma Connective Muscular Epithelial How many classes does the phylum Vertebrata have? 4 7 6 5 Two points A and B are 50m away. A body goes from A and B in 10s and then goes from B to A in 5s. What is the average velocity of the body? 6.66 m/s 2.5 m/s 7.5 m/s 0 m/s Which of these states of motion suggest the existence of an unbalanced force? An airplane taking off An Airplane cruising An airplane standing still All of the above What would happen to the gravitational force if the masses of both bodies is doubled and the distance between them is doubled? Increases Decreases Remains same None of the above Animals that transmit diseases from one person to another are called _______? Infectors Vectors Diseaser Lactase Time is Up!
