Follow the directions on the test box. If the directions say the reading is positive, yes you can be sure the test is correct.
No, they don't. If you read the instructions included in the pregnancy test box then you'll see that one line may be fainter than the other. Two lines means positive.
Two lines on a pregnancy test typically indicate a positive result, with the dark line being the control line and the light line being the test line. This usually means that you are pregnant. It is important to follow the instructions on the test for accurate interpretation.
dark-line spectrum...
it light our ways especially when its dark
Gram positive: dark purple Gram negative: light pink You may need to do your gram stain over again. It should be either dark purple or light pink.
A spectroscope is a tool that separates a star's light into color bands and dark lines (absorption lines). These dark lines are produced due to the absorption of specific wavelengths of light by elements in the star's atmosphere. Spectroscopes are important in studying the composition and characteristics of stars.
In Japanese, ranpu means light and kuro means dark. Kuro also means black.
The dark lines that appear in a spectrum of light from a star are called absorption lines. These lines are caused by the absorption of specific wavelengths of light by elements in the outer atmosphere of the star. Absorption lines help astronomers identify the chemical composition of stars and other celestial objects.
Dark lines in an absorption spectrum are called absorption lines. These lines correspond to wavelengths of light that have been absorbed by specific elements or molecules in the sample being analyzed. They appear as dips or gaps in the spectrum where less light is detected.
A dark line found in a spectrum is called an absorption line. Absorption lines are created when atoms or molecules absorb specific wavelengths of light, resulting in dark lines in the spectrum where that light is missing.
For the newest kind of robot, the light sensor is used to detect the white lines from the dark lines on the nxt this helps your robot follow the lines!!
I think it means 'after dark has fallen'.