JEE
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a year agoContributor-Level 9
Although both the CAT and the JEE Mains are a combination of assessments; they each use a different types of questions for each exam. The CAT exam asked questions about verbal ability, reading comprehension, data interpretation, logical reasoning, and quantitative reasoning. The questions tested reasoning and composed analytical and problem-solving questions that needed to be completed within a given time frame. The JEE Mains exam presented physics-related questions, chemistry-related questions and questions that required mathematics. The JEE Mains exam consists of two questionnaires that have multiple-choice questions and question tha
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a year agoContributor-Level 10
The compound microscope comprises two convex lenses - the eyepiece (lower power) and the objective (high power, short focal length). The objective forms a magnified, inverted, and real image of a small object placed just beyond its focal point. Magnifying power is M = (L/f? ) * (D/f? ), where f? is the objective's focal length, L is the tube length, and f? is the eyepiece's focal length. This image acts as the object for the eyepiece.
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a year agoContributor-Level 10
The formula says that for a thin lens, the focal length (f) to its refractive index (? ) and radii of curvature (R? , R? ). Let a thin lens with surfaces of radii R? (first surface) and R? (second surface). We can use the refraction formula to calculate the image formation by the first surface. Following is the formula -? /v -? /u = (? -? )/R. Then we can combine both refractions and assume a lens in air (? = 1).
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