Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons?
Options: 1.8 km, 0.15 km, 2.2 km, 0.20 km, 2.8 km, 0.25 km, 3.3 km, 0.30 km
Options: the sun is between the moon and the earth, the earth is between the moon and the sun, the moon is between the sun and the earth, the moon does not lie on the line joining the sun and the earth
It takes much longer to cook food in the hills than in the plains, because
Options: in the hills the atmospheric pressure is lower than that in the plains and therefore water boils at a temperature lower than 100oC causing an increase in cooking time, due to low atmospheric pressure on the hills, the water boils at a temperature higher than 100oC and therefore water takes longer to boil, in the hills the atmospheric density is low and therefore a lot of heat is lost to the atmosphere, in the hills the humidity is high and therefore a lot of heat is absorbed by the atmosphere leaving very little heat for cooking
The Parliament of India cannot be regarded as a sovereign body because
Options: it can legislate only on subjects entrusted to the Centre by the Constitution, it has to operate within the limits prescribed by the Constitution, the Supreme Court can declare laws passed by parliament as unconstitutional if they contravene the provisions of the Constitution, All of the above
Options: two internal refractions before emerging out of the drop, one internal refractions before emerging out of the drop, no internal refraction, either one or two internal refractions before emerging out of the drop