Maharashtra State Board of Technical Education 2009 Diploma in Hospital Management (E - Basic Physics) - Question Paper

E – SCHEME
Sample ques. Paper - I
Course Name : All Branches of Diploma in Engineering / Technology.
Course Code : AE/CD/CE/CH/CM/CO/CR/CS/CV/DE/ED/EE/EI/EJ/EN/EP/ET/EV/
EX/FC/FE/IC/IE/IF/IS/IU/ME/MH/MI/MU/PC/PG/PN/PS/PT
Semester : First
Subject : Basic Physics
Marks : 100 Time: three Hrs.

Instructions: 1) All the ques. are compulsory.
2) Figures to the right indicate full marks.
3) presume suitable additional data, if necessary.
4) Draw diagrams wherever necessary.

Q.1 Attempt any 8 of the following: 20 Marks
1. describe fundamental unit and derived unit.
2. Distinguish ranging from elastic and plastic body.
3. describe surface tension and angle of contact.
4. State Newton’s legal regulations of viscosity.
5. “We do not receive heat from the Sun by conduction”, provide cause.
6. describe coefficient of thermal conductivity.
7. State laws of refraction.
8. State any 2 Engineering applications of LASER.
9. describe the term Frequency and Wavelength.
10. Draw a tagged diagram for photoelectric cell.
11. if a metal rod of length 50cm is heated upto 1000 C, its length increases by two mm.Find
coefficient of linear expansion of metal.
12. The vibrating length of air column is 18cm for a frequency 512 Hz .Find velocity of sound

Q.2 Attempt any 4 of the following: 16 Marks
1. describe accuracy and precision. and differentiate ranging from them
2. The length of an object measured by vernier caliper is 10+or-0.02cm, compute the percentage fault.
3. define the behavior of wire under continuously increasing load by using stress strain curve.
4. A weight exerts force of 100 N on a steel wire of cross-sectional area 0.02 cm2.Find the
extension produced if the length of wire is five m.
5. describe cohesive force, adhesive force, capillarity and angle of contact
6. describe Instrumental error, Systematic fault and random fault.
accurate the formula, Percentage fault = Absolute fault x 100

Q.3 Attempt any 4 of the following: 16 Marks
1. describe deforming and restoring force. State the SI unit of stress.
2. describe ‘surface tension’. What is the effect of temperature and impurities on the surface tension
of liquid
3. What is Reynolds’s number? State its significance.
4. State the legal regulations of thermal conductivity of heat and describe coefficient of thermal conductivity of
heat. State its SI unit.
5. A plate of nickel four mm thick has a temperature difference of 32 °C ranging from its faces. It transmits
200 kcal / hr through an area of five cm 2. compute the thermal conductivity of nickel.
6. 1) State legal regulations of Thermal conductivity
2) describe coefficient of Thermal conductivity. State its S.I. unit.

Q.4 Attempt any 4 of the following: 16 Marks
1. State Boyle’s law, Charle’s legal regulations and Gay Lussac’s legal regulations for gases. describe absolute zero
temperature.
2. A gas at 17°C and pressure of 60 cm of mercury has quantity two liters. obtain its quantity at 27 °C
and pressure 70 cm of mercury.
3. describe 3 coefficients of expansions in solid. State relation ranging from them.
4. A length of copper rod at 0°c is 90 cm. When heated upto 100°c , it increases by 0.14cm. obtain
the coefficient of Linear expansion.
5. describe diffraction and polarization of light. State meaning of spectrum of light.
6. State the conditions constructive and destructive interference of light.

Q.5 Attempt any 4 of the following: 16 Marks
1. define spontaneous and stimulated emission in case of LASER
2. define construction and working of He –Ne laser
3. State any 4 characteristics of longitudinal waves.
4. 1) describe Resonance.
2) compute the fundamental frequency of an air column in a tube of length 25 cm closed at one
end, if velocity of sound in air is 350 m/s. Neglect End correction.
5. State properties of LASER.
6. 1) describe the term free and forced vibration.
2) A body produces waves of wavelength 33 cm. What is the frequency, if the velocity of
propagation is 330m/sec2.

Q.6 Attempt any 4 of the following: 16 Marks
1. State Planck’s hypothesis. describe work function of a metal.
2. State Einstein’s photoelectric formula. Determine the maximum kinetic energy of
photoelectrons ejected from the surface of metal by the light of wavelength 3000 A°. (Given:
Threshold wavelength of metal = 4500 A°)
3. State engineering, medical and scientific applications of X- rays.
4. 1) define continuous and characteristics spectra of X-rays.
2) What potential difference must be applied to an X-ray tube to produce X-rays of 0.5 A°
5. define construction and working of photoelectric cell.
6. discuss production of X-rays using Coolidge X-ray tube.

Earning:   Approval pending.