Physics A person standing on a railway platform listens to the whistles of arriving and departing trains. The whistle heard is The same in both cases in all respects Of higher pitch when train departs Of higher pitch when train arrives Of higher intensity when train arrives The same in both cases in all respects Of higher pitch when train departs Of higher pitch when train arrives Of higher intensity when train arrives ANSWER DOWNLOAD EXAMIANS APP
Physics A person does some work of 1,000 J in 2 s. His power will be ________ 1000W 25W 500W 50W 1000W 25W 500W 50W ANSWER DOWNLOAD EXAMIANS APP
Physics Velocity of sound in air does not depend on Temperature of air Pressure of air Humidity of air Density of air Temperature of air Pressure of air Humidity of air Density of air ANSWER DOWNLOAD EXAMIANS APP
Physics At what temperature do the Fahrenheit and Celsius scales give the same reading? 212 degrees -40 degreees 0 degreees 32 degreees 212 degrees -40 degreees 0 degreees 32 degreees ANSWER DOWNLOAD EXAMIANS APP
Physics What type of lens is used in a magnifying glass Plano-concave Convex Concave None of these Plano-concave Convex Concave None of these ANSWER DOWNLOAD EXAMIANS APP
Physics In heating frozen foods in sealed pouches in a microwaves, why do you first poke holes in the pouch? To prevent the steam pressure from bursting open the pouch To allow the microwaves to get into the food through the holes To allow the heat to get into the food through the hole To allow the aroma of the food to come out through the holes To prevent the steam pressure from bursting open the pouch To allow the microwaves to get into the food through the holes To allow the heat to get into the food through the hole To allow the aroma of the food to come out through the holes ANSWER DOWNLOAD EXAMIANS APP
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