Category: Physics

What happens to the size of pupil of our eye in I Dim Light II bright light? The colored part around the pupil called the iris adjusts the size of the pupil. Its main function is to regulate the amount of light that enters the eye. In dim light the pupils dilate (open wider) so […]

Does drag force increase as velocity increases? The downward force of gravity remains constant regardless of the velocity at which the person is moving. However, as the person’s velocity increases, the magnitude of the drag force increases until the magnitude of the drag force is equal to the gravitational force, thus producing a net force […]

Can Methanol hydrogen bond with itself? Methanol is certainly similar to formaldehyde in some ways. It is these strong hydrogen bonds that are responsible for the relatively high boiling point of methanol; there is so much positive charge on the hydrogen of the OH group that it can essentially form a real bond with the […]

What does the summer solstice mean spiritually? Here, at the Summer Solstice, the longest day of the year, we are fully awake. Our spirits are alive, refreshed, renewed, energized; all that good, juicy, rich stuff we feel in the sun. On these long days of summer our spirits yearn to be out, to feel alive, […]

Can two electrons attract each other? Show animations and explain that protons and electrons have opposite charges and attract each other. Project the animation Protons and Electrons. Explain to students that two protons repel each other and that two electrons repel each other. But a proton and an electron attract each other. What happens when […]

What is the purpose of a spectrograph? A spectrograph is an instrument that separates incoming light by its wavelength or frequency and records the resulting spectrum in some kind of multichannel detector, like a photographic plate. Many astronomical observations use telescopes as, essentially, spectrographs. What are spectral features of an image? Spectral features of images, […]

What are the two types of surface waves? The two types of surface waves are named Love waves and Rayleigh waves, after the scientists who identified them. Love waves have a horizontal motion that moves the surface from side to side perpendicular to the direction the wave is traveling. Of the two surface waves, Love […]

Can you feel when your brain is touched? How much you empathize with other people seems to reflect how strongly your brain—your primary somatosensory cortex—“feels with” them when you see them being touched. Of course, all these claims require further investigation. And, of course, empathy is a complex phenomenon. Does the brain touch the skull? […]

Can depreciation be deferred? Depreciation is the loss in value an asset sustains over its useful life. However, depreciation can not be deferred. Why is depreciation a deferred tax liability? The depreciation of fixed assets is a common example that leads to a deferred tax liability. Usually, a company will report depreciation in their financial […]

Can I sue my employer for not reporting my injury? Updated January 3, 2021 An employee injured on the job in California is generally limited to seeking recovery by filing a workers’ compensation claim. This means he or she cannot sue the employer in civil court. Can you get fired for not reporting an injury? […]