MCQ
The alkaline $CuS{O_4}$ containing sodium potassium tartrate does not react with
- A$C{H_3}CHO$
- B${C_2}{H_5}CHO$
- C${C_6}{H_5}C{H_2}CHO$
- ✓${C_6}{H_5}CHO$
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$\overrightarrow{ B }=2 \times 10^{-8} \sin \left(0.5 \times 10^{3} x +1.5 \times 10^{11} t \right) \hat{ j } T$ The amplitude of the electric field would be.


