bids are invited for determination of the capacitance and permittivity of the given material. , determination of e m of electron , planck s constant and photoelectric work function using photoelectric cell , verification of inverse square law using photocell , determination of wavelength of he ne laser using diffraction grating method , determination of dielectric constant using resonance method , wavelength of sodium light by measuring the diameter of the newtons ring , verification of existence of bohr s energy level with frank hertz apparatus. , to determine the energy band gap of a semiconductor , earths horizontal magnetic field intensity and magnetic , verification of faraday s law and lenz s law of electromagnetic induction total quantity : 110