EASY
12th Haryana Board
IMPORTANT
Earn 100

Draw energy band diagram of p-type semiconductor.

Important Questions on Solved Physics Paper-2

EASY
12th Haryana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 16 - Solved Physics Paper-2>Exercise>Q 1
When does a pure semiconductor behave as an insulator.
EASY
12th Haryana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 16 - Solved Physics Paper-2>Exercise>Q 3
State the postulates of Huygen's wave theory.
EASY
12th Haryana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 16 - Solved Physics Paper-2>Exercise>Q 4
What will be the ratio of the sizes of  nuclei of mass numbers A1  and A2?
EASY
12th Haryana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 16 - Solved Physics Paper-2>Exercise>Q 10
A silicon diode has a threshold voltage of 0.7 V. If an input voltage given by 2 sin (π t) is supplied to a half-wave rectifier circuit using this diode, the rectified output has a peak value of
HARD
12th Haryana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 16 - Solved Physics Paper-2>Exercise>Q 30
Four resistance 4 ,4 , 4 and12Ω form a Wheatstone's network. Find the resistance which when connected across the 12Ω resistance, will balance the network.
HARD
12th Haryana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 16 - Solved Physics Paper-2>Exercise>Q 31
Show that electric potential at a point P, at a distance r from a fixed point charge Q is given by V=14πε0 Qr
HARD
12th Haryana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 16 - Solved Physics Paper-2>Exercise>Q 32
Focal power of the eye lens of a compound microscope is 6 dioptre. The microscope is to be used for maximum magnifying power (angular magnification) of at least 12.5. The packing instructions demand that length of the microscope should be 25 cm. Determine minimum focal power of the objective. How much will its radius of curvature be if it is a biconvex lens of n=1.5.
HARD
12th Haryana Board
IMPORTANT
Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 16 - Solved Physics Paper-2>Exercise>Q 36
Consider two parallel coaxial circular coils of equal radius R, and number of turns N, carrying equal currents in the same direction, and separated by a distance R. Show that the field on the axis around the midpoint between the coils is uniform over a distance that is small as compared to R, and is given by,
B=0.72μ0NIR