Examlex
A convex lens has a focal length f.An object is placed at a distance between f and 2f on a line perpendicular to the center of the lens.The image formed is located at what distance from the lens?
Genus Homo
The genus Homo is a classification for the human species and its closest extinct relatives, characterized by bipedalism, larger brains compared to body size, and complex tool use.
Paleontologists
Scientists who study fossils to understand the history of life on Earth, including the evolution and extinction of species.
Continental Drift
A theory that explains the movement of the Earth's continents over geological time, leading to their current positions and formations.
Brain Size
refers to the physical measurement of the brain's volume or mass, often related to various factors including species, age, and cognitive abilities.
Q13: A beam of light of two different
Q22: A string, 0.28 m long and vibrating
Q22: The electric field 1.5 cm from a
Q27: An electron is initially moving to the
Q28: Consider the circuit shown in the figure.
Q31: A nonconducting spherical shell of inner radius
Q36: A 15-μF air-filled capacitor is connected to
Q45: A single slit forms a diffraction pattern,
Q51: Two experimental runs are performed to determine
Q70: A solid metal sphere is 15.0 cm