Search for Important Questions

Important Questions for "b.sc,physics":

[1]

  1. Describe the role of water in biological systems/processes.
  2. Explain how neurotransmission is initiated by membrane potential.
  3. Write short notes on synopses and signal transduction in biological systems.

[2]

  1. Explain the scope and methods of Biophysics.
  2. Briefly explain the biophysics of vision, hearing, sense of balance, and rotation.
  3. Write short notes on ATP.

[3]

  1. Explain the physics of the following: (a) Biophysics of water (b) Ultrafiltration
  2. What is the first and second law of thermodynamics? Explain their significance in biophysics.
  3. How does physics explain the formation of an image in the eye? Explain with a diagram.

[4]

  1. Discuss the internal structure and biophysics of stato-phono receptors.
  2. What are high energy molecules? Discuss their structure and functions.
  3. Write short notes on: (a) Defects of vision and corrections (b) Water as a universal solvent.

[5]

  1. Write short notes on: (a) Relationship between Physics and Biology (b) Properties of open system.
  2. What is photoreception? What are photoreceptor proteins? Discuss the different types of photoreceptors.
  3. Explain the mechanism of energy transfer during respiration.

[6]

  1. Write short notes on: (i) Scope of Bio-Physics (ii) Properties of open systems.
  2. Write short notes on: (i) Relationship between Physics and Biology (ii) Electricity as a potential signal.
  3. Explain chemiosmotic couplings and describe the biomechanics of the cardiovascular system.

[7]

  1. Draw the structure of the human eye. Explain its working and defects.
  2. Explain the following: (a) Enzyme-substrate reactions (b) Antigen-antibody interactions.
  3. Write short notes on: (a) Chirality (b) Hormones (c) Photosynthesis (d) Vision faults.

[8]

  1. What is the probability of occurrence of both independent events simultaneously?
  2. Define the range of the probability of an event.
  3. Explain Fermi energy and factors it depends upon.

[9]

  1. What are the fundamental laws of Physics in inertial frames?
  2. How can Plank's Law be derived?
  3. How does the Fermi energy of a free electron gas depend on electron density?

[10]

  1. Describe the Miller indices for a plane that makes specific intercepts along given axes.
  2. What is the expression for interplanar spacing in a simple cubic lattice?
  3. What is the energy gap of a crystal transparent to specific wavelengths?

[11]

  1. What happens at room temperature in semiconductors?
  2. What device is used as a temperature sensor in electronic thermometers?
  3. How is gain calculated in amplifiers with negative feedback?

[12]

  1. Write any three applications of Laser.
  2. Define phenomenon of double refraction.
  3. Find the relation between Einstein's coefficients.

[13]

  1. Write basic postulates of special theory of relativity and deduce the Lorentz transformation from the postulates.
  2. State and prove maximum power transfer theorem.
  3. Explain the phenomenon of diffraction of light. Explain the difference between Fresnel and Fraunhofer diffraction phenomena and distinguish clearly between interference and diffraction of light.

[14]

  1. Define inertial and non-inertial frames.
  2. What are Newton's rings? How are they formed? Prove that in reflected light, diameters of bright rings are proportional to the square root of odd natural numbers.
  3. Define specific rotation. Describe the construction and working of Laurent's half shade polarimeter.

[15]

  1. Write any four conditions to obtain well-defined interference.
  2. With necessary theory and energy level diagram, explain the working of a Helium-Neon gas laser.
  3. State and prove Thevenin's theorem.

[16]

  1. What is the velocity of mesons whose proper mean life is 2.510 seconds and observed mean life is 2.510 seconds?
  2. Write short notes on circularly and elliptically polarized light.
  3. Describe the construction and working of a Nicol's Prism. Explain how it can be used as an analyzer.

[17]

  1. Deduce an expression for the gravitational self-energy of a spherical shell.
  2. State and prove Gauss' Theorem.
  3. What do you mean by length contraction at relativistic speeds? Deduce the necessary expression.

[18]

  1. What is meant by Current Network?
  2. State Gauss' theorem and prove it.
  3. State and explain Kirchhoff's law of electrical network.

[19]

  1. Describe the action of a FET as a switch in an electronic circuit.
  2. What is the necessity of having a filter in a power supply?
  3. Explain the construction and working principle of a Unijunction Transistor (UJT) with its V-I characteristic curve.

[20]

  1. Show that the length of a rod is invariant under Galilean transformation.
  2. Explain the narrowing of probability distribution with the increase in the number of particles and deduce the relation R = e^-2/4.
  3. State the basic postulates of Einstein's theory of relativity and use them to obtain Lorentz transformations for frames in relative motion with constant velocity.

[21]

  1. What is the statistical mechanics in terms of microscopic and macroscopic systems?
  2. What is the ratio of most probable speed and average speed in a gas?
  3. In what structure do inert gas crystals crystallize?

[22]

  1. How many sulphide atoms are there in the unit cell of a zinc sulphide crystal?
  2. What is the quantity of energy in lattice vibration called?
  3. What is the coordination number for a bcc lattice?

[23]

  1. State the postulates of special theory of relativity.
  2. Explain the assumptions of Fermi-Dirac statistics.
  3. Compare and write differences between Maxwell-Boltzmann, Bose-Einstein, and Fermi-Dirac statistics.

[24]

  1. What is Field Effect Transistor (FET)? Why is it called unipolar transistor?
  2. Convert decimal (4097)10 to binary equivalent.
  3. Simplify the given expressions using Boolean Algebra method.

[25]

  1. Discuss the Fermi level in intrinsic and extrinsic semiconductors.
  2. Convert octal number (24) to binary equivalent.
  3. Calculate the barrier capacitance of p-n junction diode made of Germanium having area 1 um and thickness 100 nm. The dielectric constant of Germanium is 16.

[26]

  1. What is Boolean Algebra? Write down its commutative, associative and distributive properties.
  2. Convert decimal (4097)10 to binary equivalent.
  3. Convert hexadecimal number (49)16 to decimal equivalent.

GKPAD.COM by SK Yadav | Disclaimer

free counter