Solved papers for JEE Main & Advanced JEE Main Paper (Held On 10 April 2015)
done JEE Main Paper (Held On 10 April 2015) Total Questions - 2
question_answer1) If the capacitance of a Nano capacitor is measured in tern-is of a unit V made by combining the electronic charge 'e', Bohr radius \['{{a}_{0}}',\] Planck's constant 'h' and speed of light 'c' then :
JEE Main Online Paper (Held On 10 April 2015)
question_answer2) Diameter of a steel ball is measured using a Vernier callipers which lias divisions of cm on its main scale (MS) and 10 divisions of its vernier scale (VS) match 9 divisions on the main scale. Three such measurements for a ball are given as :
S. No.
MS (cm)
VS divisions
1.
0.5
8
2.
0.5
4
3.
0.5
6
If the zero error is - 0.03 cm, then mean corrected diameter is :
JEE Main Online Paper (Held On 10 April 2015)