I think it’s c let me know if it’s right
Stopping potential or cut-off potential is defined as the required potential for stopping the removal of an electron from a metal surface when the incident light energy is greater than the work potential of the metal on which the incident light is focused
hope it helps
1. Managing Goals: Goals are important in a person's life. Without goals, one will wander aimlessly through life, haunted by the feeling of not accomplishing anything. Personal goals will steer an individual in the right direction and will help this person focus his strengths in achieving that goal. Thus, at the end of the day, this individual will have a feeling of self-accomplishment.
2. Managing Tasks: Every person tackles important tasks everyday. Managing these tasks is imperative to make sure that an individual do not end up with too many things to do. In addition, managing tasks will ensure that a person do not forget any important errands or miss any deadlines.
3.Prioritize: Learning to prioritize is also a good skill to complement managing tasks. Since time is very limited, it is vital that a person completes his priorities first before anything else. That way, a person gets closer to accomplishing his goals every single day. Prioritizing is simply knowing what is necessary to finish a goal and knowing what to do next.
4.Utilizing the Calendar: A calendar is important to manage one's time fully. Whether it be a desk calendar or an electronic one, it is critical that a person have one. It is also recommended, if you have multiple calendars (Outlook, mobile phone, PDA, desk calendar), that all calendars be synchronized so as not to miss anything.
5.Procrastination Management: Everyone has a tendency to procrastinate and, for some, it is a feeling that is very difficult to resist. However, for one to be a successful time manager, one must learn to resist the calls of procrastination.
6. Reminder Systems: A good follow-up system is necessary so old tasks or projects are not forgotten. There are new things to do each day that might need much attention and a good reminder system will definitely help manage all of these tasks.
Exposure to types of radiation is associated with developing skin cancer. The sun can cause sunburn.
Melanin is the dark pigment in the outer layer of skin (epidermis) that gives your skin its normal color. When you're exposed to sunlight, your body protects itself by accelerating the production of melanin. The extra melanin creates the darker color of a tan.
A suntan is your body's way of blocking the sun rays to prevent sunburn and other skin damage. But the protection only goes so far. The amount of melanin you produce is determined genetically. Many people simply don't produce enough melanin to protect the skin well. Eventually, sunlight causes the skin to burn, bringing pain, redness and swelling.
You can get sunburn on cool, hazy or cloudy days. As much as 80 percent of sun rays pass through clouds. Snow, sand, water and other surfaces can reflect sun rays, burning your skin as severely as direct sunlight.
Medications that make your skin especially sensitive to the sun's radiation are known as photosensitizers. When you take them, sun exposure can cause overly reddened "sunburned" skin, hives, swelling, and itchy, scaly skin.
Not everyone will have the same degree of sun sensitivity from these medications. But for some, even short intervals of sun exposure can cause a rash or burn. Those who are more at risk include people with fair skin, light-colored hair, and blue eyes; people who work outside; people who live at higher elevations or near the equator; and people with certain autoimmune diseases, such as lupus.
