What is center of projection? The center of projection is the origin or source of the stream of projecting rays. Depending on the distance between the center of projection and the image plane, the distinction should be made between central (conical) projections and parallel (cylindrical) projections. What is foreshortening factor? 3) The ratio of projected […]
How do you know if a property is intensive or extensive?
How do you know if a property is intensive or extensive? Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. Physical properties can be measured without changing a substance’s chemical identity. Which […]
Why is a normal eye not able to see clearly the objects placed closer than 25cm?
Why is a normal eye not able to see clearly the objects placed closer than 25cm? Explanation. A normal eye cannot see clearly the objects that are placed closer than 25cm because the power of accommodation of the eye is 25cm which is exhausted. When the maximum accommodation of the eye is reached, the ciliary […]
How do you solve C to F?
How do you revise physics for NEET in 1 month?
How do you revise physics for NEET in 1 month? Question-Based Revision: To revise a particular chapter/topic/unit from Physics or Chemistry, choose 45-50 random MCQ questions (as per NEET exam pattern) from that chapter/topic/unit and solve them in 45 minutes. Which is easy NEET or JEE? It’s tough to compare the two examinations. As per […]
What is the average force of impact?
What is the average force of impact? The most straightforward way to approach the concept of average force is to multiply the constant mass times the average acceleration, and in that approach the average force is an average over time. Another approach that is valuable for assessing the impact force in high speed collisions is […]
Is charging by conduction permanent?
Is charging by conduction permanent? Charging by conduction gives the previously uncharged object a permanent charge. An uncharged object can also be charged using a method called charging by induction. This process allows a change in charge without actually touching the charged and uncharged objects to each other. What is positive and negative charges? There […]
What is perturbation technique?
What is perturbation technique? A mathematical technique to eliminate linear terms in an equation in order to retain the nonlinear (turbulence) terms. Variables such as potential temperature (θ) or velocity (U) can be partitioned into mean (slowly varying) and perturbation (rapidly varying) components. Why do we use perturbation? Perturbation is used to find the roots […]
How does shape affect diffusion?
How does shape affect diffusion? Diffusion is like going through a net or sieve. Smaller sizes and shapes pass through more easily than large ones. What is the relationship between cell size and diffusion? The surface-to-volume ratio of a sphere is 3/r; as the cell gets bigger, its surface-to-volume ratio decreases, making diffusion less efficient. […]
How do you log physical activity?
How do you log physical activity? How to Use a Weekly Physical Activity Log Record your activity goals. Record the type of activity you do and how long you’re active. Record notes on how the activity felt, what you noticed and things you learned while doing the activity. Record any changes you’d like to make […]