3.2.3

Light travels from air (n = 1.00) into a "mystery" material. The incident ray of light hits the surface at angle of 43^o and the refracted ray enters the mystery material at an angle of 27^o. What is the index of refraction of the mystery material? n₁sin(Θ₁) = n₂sin(Θ₂)

• 1.5

• 1.0

• 0.67

• 2.1

Tags

NGSS.MS-PS4-1

This shows the phenomenon known as....

• reflection

• refraction

• mirrors

• focal point

Images in a plane mirror are

• real

• larger

• same size

• smaller

Tags

NGSS.MS-PS4-2

What is the value of the unknown angle (theta) in the following diagram?

• 30 degrees

• 45 degrees

• 90 degrees

• 60 degrees

If the man is 4 m from the mirror, his image is how far from the mirror?

• 2 m

• 4 m

• 8 m

Given that the angle of incidence = 30 degrees

Which is the correct diagam?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-2

What is the purpose of the viral quantification experiment described in the document?

• To test the effectiveness of a new laboratory equipment

• To determine the viral load of a patient at one time point using different concentrations of antiviral medication

• To compare the blood samples of different patients not receiving any treatment

• To observe the physical changes in the blood samples over time

During the plaque assay procedure, what is poured over a hard agar surface?

• A mixture of virus, bacteria, and water

• A mixture of virus, bacteria, and COLOROTP™ soft agar

• A mixture of virus, bacteria, and PBS

• A mixture of virus, bacteria, and saline solution

What is the main objective of performing a viral plaque assay in Module I?

• To determine the pH level of the sample

• To measure the size of bacteria

• To quantify the amount of virus in a sample

• To test the effectiveness of antibiotics

Why is it important to keep the labeled agar plates warm after preparing them?

• To prevent the agar from solidifying

• To enhance the growth of microorganisms

• Because the assay only works when the base layer is warm

• To make the labels easier to read