More than fluid (ii) Same as fluid (iii) None of (iv) Expression for kinetic energy and potential energy of a body is given by : 31. ½ mv2, ma (i) mgh, ½ mv2 (ii) ma, mgh (iii) ½ mv2, mgh (iv) The energy used in industry is expressed in Kilowatt hour (KWh) which is 32. equal to : (i) 3.6 10 6J (ii) 3.06 10 6J (iii) 306 10 6J (iv) 30.6 10 6J 33. To hear an echo the minimum distance between the obstacle and the source of should be : (i) 10.4 m (ii) 15.2 m (iii) 20.6 m (iv) 17.2 m An adult human ear can hear sound in a frequency range of : 34. 20 Hz to 2000 Hz (i) 20 Hz to 20000 Hz (ii) 20 Hz to 200 Hz (iii) 20 Hz to 200000 Hz (iv) Ultra sound range of frequencies associated with : 35. Less than 20000 Hz (i) Greater than 20000 Hz (ii) None of (iii) Equal to 20000 Hz (iv) Malaria is caused by parasite : 36. Salmonella (i) Vibro Cholerae (ii) Plasmodium (iii) Bacteria (iv) The national average consumption quantity of PDS is 1 kg. It is 300 gm in Orissa. 37. Find out how much is the quantity of average consumption less than the national average consumption quantity in Orissa? 299 gm (i) 301 gm (ii) 700 gm (iii)
(ii) More than fluid (iii) Same as fluid (iv) None of 31. Expression for kinetic energy and potential energy of a body is given by : (i) ½ mv2, ma (ii) mgh, ½ mv2 (iii) ma, mgh (iv) ½ mv2, mgh 32. The energy used in industry is expressed in Kilowatt hour (KWh) which is equal to : (i) 3.6 10 6J (ii) 3.06 10 6J (iii) 306 10 6J (iv) 30.6 10 6J 33. To hear an echo the minimum distance between the obstacle and the source of should be : (i) 10.4 m (ii) 15.2 m (iii) 20.6 m (iv) 17.2 m 34. An adult human ear can hear sound in a frequency range of : (i) 20 Hz to 2000 Hz (ii) 20 Hz to 20000 Hz (iii) 20 Hz to 200 Hz (iv) 20 Hz to 200000 Hz 35. Ultra sound range of frequencies associated with : (i) Less than 20000 Hz (ii) Greater than 20000 Hz (iii) None of (iv) Equal to 20000 Hz 36. Malaria is caused by parasite : (i) Salmonella (ii) Vibro Cholerae (iii) Plasmodium (iv) Bacteria 37. The national average consumption quantity of PDS is 1 kg. It is 300 gm in Orissa. Find out how much is the quantity of average consumption less than the national average consumption quantity in Orissa? (i) 299 gm (ii) 301 gm (iii) 700 gm
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