Chapter 18, Temperature and Thermometer Calibration Video Solutions, Physics Laboratory Experiments

01:54

Problem 1

What is meant by saying that temperature is a relative measure?

Jacquelyn Tschudy

Numerade Educator

03:57

A plane mirror essentially has a radius of curvature of infinity. Using the mirror equation, show that (a) the image of a plane mirror is always virtual, (b) the image is "behind" the mirror the same distance as the object is in front of the mirror, and (c) the image is always upright.

Pronoy Sinha

Numerade Educator

01:17

Problem 2

Is our sense of touch a reliable measure of temperature? Explain.

Jerrah Biggerstaff

Numerade Educator

02:29

Problem 2

Show that the magnification factor for a mirror or lens $M=d_{i} / d_{0}$ (sign convention omitted) is the lateral magnification, or the ratio of the height (lateral size) of the image to that of the object. (Hint: Draw a ray diagram.)

Prabhat Tyagi

Numerade Educator

00:54

Problem 3

How does a liquid-in-glass thermometer operate or indicate temperature?

Dading Chen

Numerade Educator

01:27

Problem 3

Explain what characteristics make convex spherical mirrors applicable for store monitoring and concave spherical mirrors applicable as flashlight reflectors.

Matt Braby

Numerade Educator

00:44

Problem 4

What is needed to calibrate a thermometer?

James Stenhouse

Numerade Educator

01:46

Problem 4

Prove that for a converging lens, for the case $d_{i}=d_{0}$, that $d_{i}=d_{0}=2 f$.

Mayukh Banik

Numerade Educator

02:27

Problem 5

Using the thin-lens equation and the magnification factor, show that for a spherical diverging lens the image of a real object is always virtual, upright, and reduced. Does the same apply for a spherical diverging mirror?

Mirza Aslam Beig

Numerade Educator

01:48

Problem 6

(Optional)
(a) Using the experimental value of $f$ for the biconvex converging lens and $n=1.5$, compute the radius of curvature of the lens's surfaces using the lensmaker's equation. (The radius of curvature for each surface is the same.)
(b) A student incorrectly assumes that $f=R / 2$ for the lens and computes $f$ using the value of $R$ found in part (a). Compare this computed value of $f$ with the experimental value.
(c) The index of refraction of the lens could have a different value $(n$ of glass varies generally from $1.5$ to $1.7$ ). Would this make a difference? Explain.

Mahendra Rathore

Numerade Educator