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The distance upto which a TV signal can be transmitted depends on
Answer: C. Both A and B The distance upto which a TV signal can be transmitted depends on both radius of earth and height of antenna.
Answer: C. Both A and B
See lessThe distance upto which a TV signal can be transmitted depends on both radius of earth and height of antenna.
Ozone layer is produced by
Answer: B. Ultraviolet rays Ozone layer is produced by ultraviolet rays.
Answer: B. Ultraviolet rays
See lessOzone layer is produced by ultraviolet rays.
Atoms whose nuclei have same number of neutrons are called
Answer: A. Isotones Atoms whose nuclei have same number of neutrons are called isotones.
Answer: A. Isotones
See lessAtoms whose nuclei have same number of neutrons are called isotones.
Atoms whose nuclei have same number of protons are called
Answer: B. Isotopes Atoms whose nuclei have same number of protons are called isotopes.
Answer: B. Isotopes
See lessAtoms whose nuclei have same number of protons are called isotopes.
Thermonuclear bomb is known as
Answer: B. Hydrogen bomb Thermonuclear bomb is known as hydrogen bomb.
Answer: B. Hydrogen bomb
See lessThermonuclear bomb is known as hydrogen bomb.
The image formed by concave lens is
Answer: B. Always virtual The image formed by concave lens is always virtual.
Answer: B. Always virtual
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The theory associated with secondary wavelet is
Answer: C. Huygen's wave theory The theory associated with secondary wavelet is Huygen's wave theory.
Answer: C. Huygen’s wave theory
See lessThe theory associated with secondary wavelet is Huygen’s wave theory.
The coherence of two light sources means that the light waves emitted have:
Answer: C. Same phase The coherence of two light sources means that the light waves emitted have same phase.
Answer: C. Same phase
See lessThe coherence of two light sources means that the light waves emitted have same phase.
The R. I. of glass is minimum for light of which colour?
Answer: A. Red The R.I. of glass is minimum for light of red colour.
Answer: A. Red
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In a certain case, the maxima and minima are equally bright and width. The pattern is due to
Answer: B. Interference In a certain case, the maxima and minima are equally bright and width. The pattern is due to interference.
Answer: B. Interference
See lessIn a certain case, the maxima and minima are equally bright and width. The pattern is due to interference.