Question:

A point object is kept between a plane mirror and a concave mirror facing each other. The distance between the mirrors is 22.5cm

A point object is kept between a plane mirror
and a concave mirror facing each other. The
distance between the mirrors is 22.5cm .
Plane mirror is placed perpendicular to
principal axis of concave mirror. The radius of
curvature of the concave mirror is 20cm .
What should be the distance of the object
from the concave mirror so that after two
successive reflections the final image is
formed on the object itself? (Consider first
reflection from concave mirror)
A.
5cm
Correct Answer
B.
15 cm
C.
10cm
D.
7.5cm

A point object is kept between a plane mirror and a concave mirror facing each other. The distance between the mirrors is 22.5cm . Plane mirror is placed perpendicular to principal axis of concave mirror. The radius of curvature of the concave mirror is 20cm . What should be the distance of the object from the concave mirror so that after two successive reflections the final image is formed on the object itself? (Consider first reflection from concave mirror) A. 5cm Correct Answer B. 15 cm C. 10cm D. 7.5cm

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---hing Activity
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At
Graphing and Analyzing Scientific Data
turn in
of the
als: Cor
Graphing is an important procedure used by scientist to display the data that is collected during a controlled
experiment. There are three main

Physics

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re found Class set one and ---hing Activity At At Graphing and Analyzing Scientific Data turn in of the als: Cor Graphing is an important procedure used by scientist to display the data that is collected during a controlled experiment. There are three main types of graphs: Pie/circle graphs: Used to show parts of a whole. lures w Bar graphs: Used to compare amounts. Mark Start Start Plac Line graphs: Use to show the change of one piece of information as it relates to another change. Both bar and line graphs have an "X" axis (horizontal) and a "Y" axis (vertical). ATA Posi (1 Parts of a Graph: Title: Summarizes information being represented in ANY graph. Independent Variable: The variable that is controlled by the experimenter, such as, time, dates, depth, and temperature. This is placed on the X axis. Dependent Variable: The variable that is directly affected by the I.V. It is the result of what happens as time, dates, depth and temperature are changed. This is placed on the Y axis. Scales for each Variable: In constructing a graph, one needs to know where to plot the points representing the data. In order to do this a scale must be employed to include all the data points. A. Graph the following information in a LINE graph. Label and number the x and y-axis appropriately. La Time (Sec). 0 1 2 3 4 5 6 7 Distance (m) 0 2 $ų 95 14 8 2b 11 27 12 36 14 4 Distance cm) S32 12 18 10 9 2 6 4 3 2 1 02.345 6 1 Time (Secl 1. What is the independent variable? 2. What is the dependent variable? 3. What is an appropriate title? Soced 4. Calculate the slope. 5. What is the equation for your line of best fit? Remember y = mx +b.