6. Which of the following statements is/are true?*

A concave lens has 4 dioptre power having a focal length 0.25 m
A convex lens has 4 dioptre power having a focal length 0.25 m
A concave lens has - 4 dioptre having a focal 0.25 m
A convex lens has -4 dioptre power having a focal length 0.25 m

Not all tiles will be usedidentify the element present in each star based on the gaps observed in wavelengths of its light refer to this table containing absorption wavelengths (in nm) of several different elements the table ishelium 447, 502 ,587 ,668carbon 427 ,515, 600 ,678sulfur 425, 565, 639, 675xenon 484, 590, 687calcium 429 ,527, 593, 645silver 421 ,521, 662

Explain what makes a passenger in a turning car slide toward the door. critical thinking

What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology