A students performs an experiment to determine the young’s modulus of a wire , exactly 2m long buy Searle’s method . In a particular reading ,the student measures the extension in the length of the wire to be 0.8 mm with an uncertainty of ±0.05 mm at a load of exactly 1.0 kg the student also measures the diameter of the wire to be 0.4mm with an uncertainty of ± 0.01mm. Take g = 10.0 m๐‘ ^(−2) . The young’s modulus obtained from the reading is A) (2.0 ±0.3) x 〖10〗^11 N๐‘š^(−2) B) (2.0 ±0.2) x 〖10〗^11 N๐‘š^(−2) C) (2.0 ±0.1) x 〖10〗^11 N๐‘š^(−2) D) (2.0 ±0.05) x 〖10〗^11 N๐‘š^(−2)

Education is a part of Life

Comments

Popular posts from this blog

Two rigid boxes containing different ideal gases are placed on a table . Box A contains one mole of nitrogen at temperature ๐‘‡_๐‘œ , while box B contains one mole of helium at temperature 7/3 ๐‘‡_๐‘œ . The boxes are then put into thermal contact with each other and heat flows between them until the gases reach a common final temperature (ignore the heat capacity of boxes and heat exchange will happen only between boxes ) . Then the final temperature of the gases in terms of ๐‘‡_๐‘œ is 7/3 ๐‘‡_๐‘œ 3/2 ๐‘‡_๐‘œ 5/2 ๐‘‡_๐‘œ 3/7 ๐‘‡_๐‘œ

Kirchhoff law problem and equivalent resistance

error analysis objective questions dpp