Evaluate apparent depth of a needle, Electrical Engineering

Assignment Help:

Q. A tank is filled with water to a height of 12.5cm.The apparent depth of a needle lying at the bottom of the tank is measured by a microscope to be 9.4cm.What is the refractive index of water? If water is replaced by a liquid of refractive index 1.63 Upto the same height, by what distance would the microscope have to be moved to focus on the needle again?

Answer

Actual depth of the needle in water, h₁=12.5cm

Apparent depth of the needle in water, h₂=9.4cm

Refractive index of water=6

The value of6 can be obtained as follows:

806_Evaluate apparent depth of a needle.png

Therefore the refractive index of water is about 1.33.

Water is restore by a liquid of refractive index,

The authentic depth of the needle remains the same however its apparent depth changes.

Permit y be the new apparent depth of the needle. Thus we can write the relation:

2443_Evaluate apparent depth of a needle1.png

Therefore the new apparent depth of the needle is7.67cm it is less than h₂.

Thus to focus the needle again the microscope must be moved up.

*Distance by which the microscope must be moved up = 9.4-7.67 = 1.73cm

Related Discussions:- Evaluate apparent depth of a needle

How clock signal is generated in 8086, How clock signal is generated in 808...

How clock signal is generated in 8086?what is the maximum internal clock frequency of 8086? Clock input 33% square wave from external clock generator .the external clock genera

P-n junction, P-N Junction A p-n junction is made by joining P-ty...

P-N Junction A p-n junction is made by joining P-type and N-type semiconductors together in extremely close contact. The word junction consider to the boundary interface

Dual trace and dual beam cro, what is difference between dual trace and dua...

what is difference between dual trace and dual beam cro?

Ht metering, HT Metering The following type of meters is generally use...

HT Metering The following type of meters is generally used for HT consumers: Trivector Meter, Bivector Meter, and Summation Meters. Trivector Meter

Construction features of electron gun, Compare the application of CO 2 and...

Compare the application of CO 2 and Nd :YAG Laser for cutting operation. Define with a neat and clean diagram the construction features of ‘electron gun' used for preparing an

Explain the working of a depletion type mosfet, Q. With a cross sectional v...

Q. With a cross sectional view, explain the working of a depletion type MOSFET Draw a biasing amplifier circuit DEPLETION-TYPE MOSFET: Two types of FETs: JFETs and MOSFETs. MOS

How speech is transmitted in digital switching environment, Q. How speech i...

Q. How speech is transmitted in digital switching environment by using PCM/TDM? Ans: A digital carrier system is a communications system which uses digital pulses instead of

Inr increment instruction, INR (Increment ) Instruction This instruct...

INR (Increment ) Instruction This instruction is used to increment the contents of any register or memory location by one. There are two format.

Describe schmitt trigger, a) Describe Schmitt trigger with the help of tran...

a) Describe Schmitt trigger with the help of transfer characteristics. b) Also get the expression of hysteresis voltage VH and output waveform for sinusoidal input signal

Crystal-controlled oscillator circuits, Circuits, which provide sinusoidal ...

Circuits, which provide sinusoidal waveforms, are but useful in themselves and form the basis of many other circuits, such as square and triangular waveform generators, and clocks.

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages