Mix
Total internal reflection used in:
A) Optical fiber
B) Only mirrors flat
C) Only lenses
D) Only prisms absorb
Photoelectric effect shows:
A) Quantum light
B) Only wave
C) No electrons
D) Gravity
Laser light is:
A) Coherent monochromatic
B) Incoherent white
C) Random phases
D) Broad spectrum always
Nuclear fission:
A) Heavy nucleus splits
B) Light fusion
C) Electron emission
D) Chemical reaction
Nuclear fusion in:
A) Stars
B) Battery
C) Wire resistor
D) Capacitor
Half-life radioactive:
A) Statistical decay rate
B) All decay same instant
C) Linear always
D) No decay
X-rays used in:
A) Medical imaging
B) Only sound
C) Only cooking
D) Only magnets
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