A microscope has a scale of 250:1.
What does this scale mean?
The diameter of a white blood cell under magnification appears to be 0.3 centimeters. What is the diameter of the white blood cell in millimeters?
___ millimeters
The width of a grain of sugar is 0.7 millimeters. What will be the width of the grain of sugar in centimeters under magnification?
___ centimeters
The scale of a microscope, such as 250:1, refers to the ratio of the size of an object as seen through the microscope compared to its actual size. In this case, it means that when an object is viewed through the microscope, it appears 250 times larger than its actual size.
To calculate the diameter of the white blood cell in millimeters, we can use the scale of the microscope.
First, convert the actual diameter of the white blood cell from centimeters to millimeters:
0.3 centimeters x 10 = 3 millimeters
Next, divide the diameter in millimeters by the magnification scale:
3 millimeters ÷ 250 = 0.012 millimeters
Therefore, the diameter of the white blood cell in millimeters is 0.012 millimeters.
To find the width of the grain of sugar in centimeters under magnification, we can also use the scale of the microscope.
First, convert the actual width of the grain of sugar from millimeters to centimeters:
0.7 millimeters ÷ 10 = 0.07 centimeters
Next, multiply the width in centimeters by the magnification scale:
0.07 centimeters x 250 = 17.5 centimeters
Therefore, the width of the grain of sugar in centimeters under magnification is 17.5 centimeters.