Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : flop flops are used in counters and registers. Reason (R) : flip flops are combinational circuits that store data temporarily. In the light of the above statements, choose the most appropriate answer from the options given below :
The question requires evaluating two statements: Assertion (A) and Reason (R).
Statement Analysis
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Assertion (A): Flop flops are used in counters and registers.
- Flip flops are basic digital memory elements that can store one bit of data. They are used in designing counters, shift registers, and various types of memory devices. Hence, Assertion (A) is correct.
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Reason (R): Flip flops are combinational circuits that store data temporarily.
- Flip flops are not combinational circuits; they are sequential circuits. The main difference is that combinational circuits compute their outputs directly from current inputs, without any memory or feedback. In contrast, sequential circuits like flip flops have memory elements and their outputs depend on both current inputs and the stored past inputs.
- Thus, Reason (R) is incorrect.
Conclusion
Based on the analysis, Assertion (A) is correct since flip flops are indeed essential components of counters and registers. However, the Reason (R) incorrectly categorizes flip flops as combinational circuits when they are actually sequential circuits. Therefore, the correct option is: (A) is correct but (R) is not correct.
Important Questions from Miscellaneous
- Which of the following relationships is/are not true?
(A). Most probable velocity = $\sqrt{\frac{2RT}{M}}$
(B). PV = $\frac{3}{2}kT$
(C). Compressibility factor Z = $\frac{pV}{nRT}$
(D). Average kinetic energy of gas = $\frac{1}{2}kT$
Choose the correct answer from the options given below - Match List-I with List-II
List-I List-II Electronic Configuration First Ionisation energy (kJ mol$^{-1}$) (A). ns$^2$ (I). 2100 (B). ns$^2$np$^1$ (II). 1400 (C). ns$^2$np$^3$ (III). 800 (D). ns$^2$np$^6$ (IV). 900
Choose the correct answer from the options given below: - The shielding constant of a 2p electron (calculated using Slater's rules) is
- Match List-I with List-II
List-I List-II Spectroscopy Property (A). Raman (I). Polarizability (B). FTIR (II). Dipole Moment (C). UV-Visible (III). Absorbance (D). NMR (IV). Spin
Choose the correct answer from the options given below: - The structure of protein comprises of:
(A). Primary structure of protein is associated with amino acids
(B). Secondary structure of protein is associated to peptides
(C). Tertiary structure of protein is associated with polypeptide chains
(D). Quaternary structure of protein is associated with polypeptide chains
Choose the correct answer from the options given below:
