HSC Science (Electronics) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions

Obtain the differential equation of linear simple harmonic motion.

Draw a neat, labelled diagram for a liquid surface in contact with a solid, when the angle of contact is acute.

A transverse wave is produced on a stretched string 0.9 m long and fixed at its ends. Find the speed of the transverse wave, when the string vibrates while emitting the second overtone of frequency 324 Hz.

Two sound notes have wavelengths 83/170 m and 83/172 m in the air. These notes when sounded together produce 8 beats per second. Calculate the velocity of sound in the air and frequencies of the two notes.

If a watch-glass containing a small quantity of water is placed on two dissimilar magnetic poles, then water ______.

If a watch-glass containing a small quantity of water is placed on two dissimilar magnetic poles, then water ______.

An unknown resistance is placed in the left gap and resistance of 50 ohm is placed in the right gap of a meter bridge. The null point is obtained at 40 cm from the left end. Determine the unknown resistance.

Two soap bubbles have radii in the ratio 4:3. What is the ratio of work done to blow these bubbles?

Explain the physical significance of radius of gyration

A uniform solid sphere has radius 0.2 m and density 8 x 10³ kg/m³. Find the moment of
inertia about the tangent to its surface. (π = 3.142)

Define linear simple harmonic motion.

Discuss different modes of vibrations in an air column of a pipe open at both the ends.

State the cause of end correction.

Find the end correction for the pipe open at both the ends in fundamental mode.

Find the magnetization of a bar magnet of length 10 cm and cross-sectional area 4 cm², if the magnetic moment is 2 Am².

Find the magnetization of a bar magnet of length 10 cm and cross-sectional area 4 cm², if the magnetic moment is 2 Am².

When unknown resistance is determined by meter bridge, the error due to contact resistance
is minimized ______.

(A) by connecting both the resistances only in one gap.
(B) by interchanging the positions of known and unknown resistance.
(C) by using uniform wire.
(D) by obtaining the null point near the ends of the wire.

Using monochromatic light of wavelength λ in Young’s double slit experiment, the eleventh dark fringe is obtained on the screen for a phase difference of ______.

If two capillary tubes of different diameters are partially dipped in the same liquid vertically, then the rise of liquid ______.

Draw a neat labelled diagram of rise of liquid in capillary tube showing different components of tension (force).