MCQ
Dark lines on solar spectrum are due to
- ALack of certain elements
- BBlack body radiation
- ✓Absorption of certain wavelengths by outer layers
- DScattering
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$(A)$ the emf induced in the loop is zero if the current is constant.
$(B)$ The emf induced in the loop is finite if the current is constant.
$(C)$ The emf induced in the loop is zero if the current decreases at a steady rate.
$(D)$ Theemf induced in the loop is finite if the current decreases at a steady rate.
