science ONLINE TEST 0% 10th Science – Unit -1, 2, 7, 12 Wish you all the Best ! The number of attempts remaining is 1 1 / 25 Which among the following is a homo atomic molecule? NH₃ N₂O N₂ HCl 2 / 25 A & B are two objects with masses 100kg & 75kg respectively, then __________ ? B will have more inertia Both will have less inertia A will have more inertia Both will have same inertia 3 / 25 A convex lens forms a real, diminished point sized image at focus. Then the position of the object is at? Infinity Focus At 2f Between f and 2f 4 / 25 Which quantity is zero at the centre of the earth? Weight Mass Both mass & weight None 5 / 25 Which of the following represents 1 amu? Mass of a hydrogen atom Mass of a C – 12 atom Mass of O – 16 atom 1/ 12th of the mass of a C – 12 atom 6 / 25 The volume occupied by 4.4g of CO₂ at S.T.P ? 22.4 litre 0.1 litre 0.24 litre 2.24 litre 7 / 25 1 mole of any substance contains ______ molecules? 3.0115 x 10²³ 6.023 x 10²³ 12.046 x 10²³ 6.023 x 10¯²³ 8 / 25 When a ray of light travels from one medium to another, it bends. This phenomenon is called? Reflection Interference Dispersion Refraction 9 / 25 Which of the following is a triatomic molecule? Hydrogen Helium Glucose Carbon dioxide 10 / 25 The ____________ is called starch sheath in a dicot stem? Pericycle Endodermis Epidermis Hypodermis 11 / 25 A luggage is usually tied with a rope on the roof of the buses due to? Inertia of rest Inertia of motion Momentum Inertia of direction 12 / 25 Convex lens always forms a real images, if the object is situated beyond? Optic Centre Focus Centre of curvature Radius of curvature 13 / 25 Where should an object be placed so that a real and inverted image of same size is obtained by a convex lens? Between f and 2f f Infinity 2f 14 / 25 __________helps in transpiration? Stomata Root hairs Epidermis Trichomes 15 / 25 The xylem and phloem arranged side by side on same radius is called? Conjoint Amphivasal None of these Radial 16 / 25 Presbyopia is corrected by ________ ? Convex Focal Cylindrical Concave 17 / 25 Kreb’s cycle takes place in? Inner mitochondrial membrane Chloroplast Stomata Mitochondrial matrix 18 / 25 Atoms of different elements with different atomic numbers, but same mass number are know as ? Isotopes Isomers Isotones Isobars 19 / 25 Casparian strips are present in the_________of the root ? Cortex Pith Endodermis Pericycle 20 / 25 Physics that deals with effect of force on bodies is? Mechanics Kinematics Statics Dynamics 21 / 25 One kilogram force equals to? 980 dyne 9.8 x 10⁴ N 9.8 dyne 98 x 10⁴ dyne 22 / 25 The resistance of a body to change its state of rest is called? Inertia of rest Inertia of motion Inertia of direction Momentum 23 / 25 The amount of light entering the human eye is controlled by? Ciliary muscles Cornea Pupil Iris 24 / 25 Oxygen is produced at what point during photosynthesis? When CO₂ is fixed When H₂O is splitted All of these When ATP is converted to ADP. 25 / 25 Exarch and tetrarch xylem are a feature of _________ ? Monocot root Dicot root Dicot leaf Dicot stem Your score is Note: Once you start the test, you are not allowed to go back. Results won’t be generated if you quit the test. Complete the test within the given time. Once the time is over, the test will be submitted automatically. You can verify your answers at the result page.
