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The refracting angle of a prism is $A$, and the refractive index of the material of the prism is $\cot(A/2)$. The angle of minimum deviation is:
For a normal eye, the cornea of eye provides a converging power of $40\text{ D}$ and the least converging power of the eye lens behind the cornea is $20\text{ D}$. Using this information, the distance between the retina and the cornea-eye lens can be estimated to be:
Initiation codon in eukaryotes is:
A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?
Match List-I with List-II: List-I (Era) A. Mesozoic Era B. Proterozoic Era C. Cenozoic Era D. Paleozoic Era List-II (Dominant Life Forms) I. Lower invertebrates II. Fish & Amphibia III. Birds & Reptiles IV. Mammals
The displacement-time ($x-t$) graph of a particle performing simple harmonic motion is shown in the figure. The acceleration of the particle at $t = 2$ s is:
The angle of a prism is $A$. One of its refracting surfaces is silvered. Light rays falling at an angle of incidence $2A$ on the first surface returns back through the same path after suffering reflection at the silvered surface. The refractive index $\mu$ of the prism is:
Variations caused by mutation, as proposed by Hugo de Vries, are:
The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge is called:
Identify the fossil of a man who showed the following characteristics: (A) Brain capacity of 1400 cc (B) Used hides to protect their body (C) Buried their dead bodies
The idea of mutations was brought forth by:
Match the corresponding entries of Column 1 (Magnification, m) with Column 2 (Nature of Mirror/Image): **Column 1** (A) m = –2 (B) m = –1/2 (C) m = +2 (D) m = +1/2 **Column 2** (a) Convex mirror (b) Concave mirror (c) Real image (d) Virtual image
Which of the following is not due to total internal reflection?
The given electrical network is equivalent to:
An astronomical refracting telescope will have large angular magnification and high angular resolution when it has an objective lens of:
Genetic drift operates in:
A concave lens with a focal length of $-25 \text{ cm}$ is sandwiched between two convex lenses, each with a focal length of $40 \text{ cm}$. The power (in diopters) of the combined lens system would be:
For the given circuit, the input digital signals are applied at the terminals A, B and C. What would be the output at terminal Y?
Identify 'X' in the following reaction.
The number of orbitals indicated by the following set of quantum numbers, $n = 3, l = 2, m = +2$ is: