Hydrogen Line spectra – Bohr’s Model Approach According to the third postulate of Bohr’s Model, whenever an electron jumps from higher energy level (orbit) of a Hydrogen atom to one of its lower energy level, an electromagnetic wave (em wave) emits. The energy of em wave is equal to the energy difference between the two…
Science practical class 10 – \(\text{List of All Experiments}\) for the academic session \(\textbf{2024-25}\)
Bohr model of hydrogen atom View notes in Desktop view and in landscape mode . Use Chrome browser for best experience. Click Here for Class 12 Physics Notes Reference: Based on the NCERT books
Identify a diode, an LED, a resistor and a capacitor Aim To identify a diode, an LED, a resistor and a capacitor from a mixed collection of such items. Apparatus and Material Required Multimeter, a collection of diode, LED, resistor and capacitor. Principle Procedure Results A diode, a LED, a resistor and a capacitor are identified…
Use of multimeter Aim Use of multimeter to see the unidirectional flow of current in case of a diode and an LED and check whether a given electronic component (e.g., diode) is in working order. Apparatus and Material Required Principle Diode: A diode is a two-terminal semiconductor device that allows current to flow in only one…
Viva Questions – Determination of Resistivity for the experiment “To determine resistivity of two wires by plotting a graph for potential difference versus current.” Basic Questions Procedure-related Questions Conceptual Questions Application-based Questions Questions based on Error Analysis For more Viva questions on Physics Practical Class 12, Click here For practical records of Physics Practical Class…
Most probable and important Viva questions on Physics Experiments and Activities of Class 12. Viva on Experiment 01: “To determine resistivity of two wires by plotting a graph for potential difference versus current.” Viva on Experiment 02: “To find resistance of a given standard resistor using metre bridge.” For practical records of Physics Practical Class…
I-V characteristic curve for a p-n junction Aim To draw the I-V characteristic curve for a p-n junction diode in forward and reverse bias. Apparatus and Material Required Principle Procedure Caution Never increase the value of the voltage too much across the diode. Excessive current flow may damage the diode if it exceeds its limit. Maximum…
Refractive index of a liquid Aim To find the refractive index of a liquid using convex lens and plane mirror. Apparatus and Material Required Principle A real and inverted image coincides with the object placed on the principal focus point of a convex lens when a plane mirror placed horizontally below the lens. The rays from…
Determination of the Angle of Minimum Deviation for a given Prism Aim To determine angle of minimum deviation for a given prism by plotting a graph between angle of incidence and angle of deviation. Apparatus and Material Required Principle A triangular prism consists of three rectangular lateral surfaces and two triangular bases. The two lateral surfaces,…