1. According to some studies, dolphins, whales and other sea creatures use highly sophisticated navigation system.
A. anyB. a littleC. manyD. much
2. Well begun _______ half done.
A. isB. meanC. areD. meaning
3. Young’s modulus for a perfectly rigid body is–
A. 0B. ∞C. 1D. −1
4. What is maximum number of isomers possible for? C3H8O
A. 5B. 4C. 2D. 3 C3H8O CH3 − CH2 − CH2 − OH OH | CH3 − CH − CH3 CH3 − CH2 − O − CH3
5. Where does gas exchange take place in the respiratory system?
A. AlveolusB. BronchusC. BronchioleD. Trachea
6. Two particles are oscillating at simple harmonic motion. If their displacements are described by and, what will be the phase difference between them at any instant? x1 = Asin ωt x2 = −Asinωt
A. 2πB. πC. π 2D. π 4