Chemistry
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Air bubble, in water, will act like:
Answer: B. A diverging lens Air bubble, in water,will act like a diverging lens.
Answer: B. A diverging lens
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When the light travels from glass to air, there will be no change in its:
Answer: B. Frequency When the light travels from glass to air, there will be no change in its frequency.
Answer: B. Frequency
See lessWhen the light travels from glass to air, there will be no change in its frequency.
The sign of power of a concave lens is
Answer: A. Negative The sign of power of a concave lens is negative.
Answer: A. Negative
See lessThe sign of power of a concave lens is negative.
The sign of power of convex lens is
Answer: B. Positive The sign of power of a convex lens is positive.
Answer: B. Positive
See lessThe sign of power of a convex lens is positive.
The power of glass slab is
Answer: C. Zero The power of glass slab is zero.
Answer: C. Zero
See lessThe power of glass slab is zero.
The type of aberration present in lens but not in mirror is:
Answer: D. Chromatic The type of aberration present in lens but not in mirror is chromatic.
Answer: D. Chromatic
See lessThe type of aberration present in lens but not in mirror is chromatic.
Huygen’s wave theory of light cannot explain:
Answer: D. Photoelectric effect Huygen's wave theory of light cannot explain photoelectric effect.
Answer: D. Photoelectric effect
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Due to atmospheric refraction the effect on sunrise and sunset is
Answer: A. Sun rise early and sun set late Due to atmospheric refraction the effect on sunrise and sunset is sunrise early and sun set late.
Answer: A. Sun rise early and sun set late
See lessDue to atmospheric refraction the effect on sunrise and sunset is sunrise early and sun set late.
When monochromatic light travels from air to glass, then
Answer: C. Wavelength decrease When monochromatic light travels from air to glass, then wavelength decrease.
Answer: C. Wavelength decrease
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A yellow flower if looked through red glass will look like:
Answer: A. Black A yellow flower is looked through red glass will look like black.
Answer: A. Black
See lessA yellow flower is looked through red glass will look like black.