Q63.If 19 th term of a non-zero A.P. is zero, then its (49th term): (29th term) is: (1) 4: 1 (2) 1: 3 (3) 3: 1 (4) 2: 1 2 n where q is a real number + + … +
What This Question Tests
This question tests basic understanding of arithmetic progressions, specifically the formula for the nth term, and solving a simple ratio problem.
Concepts Tested
Formulas Used
an = a + (n-1)d
📚 NCERT Sections This Tests
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13.4 Obtain approximately the ratio of the nuclear radii of the gold isotope 197 79 Au and the silver isotope 10747 Ag .
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Physics Class 11 · Chapter 2
2.1 Two charges 5 × 10–8 C and –3 × 10–8 C are located 16 cm apart. At what point(s) on the line joining the two charges is the electric potential zero? Take the potential at infinity to be zero.
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Chemistry Class 11 · Chapter 1
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📋 Question Details
- Chapter
- Sequences & Series
- Topic
- Arithmetic Progression (AP)
- Year
- 2019
- Shift
- 11 Jan Shift 2
- Q Number
- Q63
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 9: Sequences and Series
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